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An upper level low is sitting off the Oregon- Northern California coast. It will slowly migrate to the east, thus moving South of us and as a result will spin moisture northward toward us. A surface low will move Southeastward through California and then high pressure will try to take over. There will be a chance of precipitation for the next 7 days, but the chances will be quite low.

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Advisories: NONE AT THIS TIME.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with a (30%) chance of evening showers then a slight (20%) chance of showers tonight low near 40. A mix of clouds and sun Sunday with a slight (20%) chance of afternoon showers high 62. Mostly cloudy Sunday night with a (40%) chance of showers low 42. Mostly cloudy with a slight (20%) chance of showers Monday high 58. Mostly cloudy with a (30%) chance of showers Monday night through Saturday lows near 40 highs in the upper 50s to the low 60s.

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a slight (20%) of thunderstorms this evening and a slight (20%) chance of showers late this evening and late tonight low 39. Mostly cloudy Sunday with a slight (20%) chance of morning showers then scattered afternoon showers snow level 3,500′ high 59. Mostly cloudy with showers Sunday evening then a good (50%) chance of showers at night  low near 43. Mostly  cloudy with a (30%) chance of showers Monday and Monday night snow level 3,500′ late at night high 55 low 40. A (30%) chance of showers Tuesday with a slight (20%) chance of rain and snow showers Tuesday night  high 58 low 40. Mostly cloudy with a (40%) chance of showers Wednesday and Wednesday night high 60-56 low 38. A (30%) chance of rain and snow showers Thursday then a slight (20%) chance of showers Thursday night through Friday night lows 44-40  highs 59-64 . Just a slight (20%) chance of showers Saturday high near 65.

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with a slight (20%) chance of thunderstorms this evening and a slight (20%) chance of showers late evening inland and breezy (winds South 15-25 mph becoming Southeast 10-15 mph late at night) low 40. Mostly cloudy Sunday with a (40%) chance of showers morning showers then showers in the afternoon Sunday high 54. Mostly cloudy with showers Sunday evening and a (40%) chance of showers at night low 40. Mostly cloudy with a (40%) chance of showers Monday, a (30%) chance Monday night, a (30%) chance Tuesday, and a slight (20%) chance of showers Tuesday night highs 53-56 low 44. Mostly cloudy with a (40%) chance of showers Wednesday through Thursday  highs near 60 low 44 . Mostly with a (30%) chance of showers Thursday night and Friday, then a slight (20%) chance of showers Friday night and Saturday lows 43-46 highs 57-60.

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Forecast for the Cascades of Lane County:   Mostly cloudy tonight with a good (50%) chance of showers then a (30%) chance of rain and snow showers Sunday  snow level 4,500′ late tonight rising to in the afternoon 5,000′ low 28 high 44. Mostly cloudy with a (40%) chance of showers Sunday night and a (40%) chance of rain and snow showers Monday snow level 5,000′ falling to 4,500′ Monday afternoon low 29  high 42 . Mostly cloudy with a (40%) chance of rain and snow showers Monday night through Thursday night snow level 4,500′ falling to 3,500′  Tuesday night and 5,000′ Wednesday through Thursday night but 4,000′ Wednesday night lows mid 20s to low 30s highs low 40s warming to mid and upper 40s. Mostly cloudy with a (40%) chance of showers Friday through Saturday snow 6,000′ Friday, to 6,500′ Friday night and rising to 7,000′ Saturday highs 50-45 low 30.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

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High Pressure (the arch-shaded and with blue arrows-moving ashore) is moving in to replace the trough of low pressure moving eastward away from us. High pressure is also moving in at the surface which will give us some more sunshine. A couple of storms will move through Oregon next week.

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Advisories: NONE AT THIS TIME.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: A mix of clouds and sun today high 62. Mostly cloudy with a slight (20%) chance of showers tonight and Sunday afternoon low 39 high 59. Partly cloudy Sunday evening then mostly cloudy with a (30%) chance of showers at night low 40. Mostly cloudy with a (30%) chance of showers Monday through Friday  highs 57-60 lows in the upper 30s.

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Forecast for the Umpqua Basin including Roseburg: Partly cloudy this morning with patchy fog then mostly cloudy with a slight (20%) chance of showers and thunderstorms this afternoon high 63. Mostly cloudy with a slight (20%) of showers tonight , an evening thunderstorm is possible, low 40. Mostly cloudy with a slight (40%) chance of showers Sunday and a slight (20% chance )Sunday night high 64 low near 40. Mostly  cloudy with a good (50%) chance of showers Monday and Monday night high 59 low 40. Rain and snow likely Tuesday with a (40%) chance of rain and snow showers Tuesday night high 59 low 39. Mostly cloudy with a (40%) chance of showers Wednesday and (30%) Wednesday night and Friday highs near 60 lows near 40.

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this  morning then becoming mostly cloudy this afternoon with a slight (20%) chance of an afternoon thunderstorm high 55. Mostly cloudy with a slight (20%) chance of evening showers  and thunderstorms inland and breezy (winds South 10-20 mph becoming Southeast 5-10 mph late at night) low 40. Mostly cloudy Sunday and Sunday night with a (40%) chance of showers Sunday high 53 low 40. A  (40%) chance of showers Monday and likely (60%) Monday night high near 55 low 42. Mostly cloudy with rain likely (60%) Tuesday with a good (50%) chance of showers Tuesday night, (40%) Wednesday through Thursday night highs 55-60 lows 40-44 . Mostly with a (30%) chance of showers Friday high near 60.

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Forecast for the Cascades of Lane County:   A mix of clouds and sun today and warmer with a slight (20%) chance of showers snow level  6,500′ falling to 5,500′ this afternoon high 46.  Mostly cloudy tonight with a (30%) chance of evening showers then a (30%) chance of rain or snow showers at night snow level 5,000′ falling to 4,500′ low 30. A slight (20%) chance of rain and snow showers Sunday morning then a (40%) chance of rain and snow showers in the afternoon snow level 4,000′ rising to 5,000′ high 43. Mostly cloudy with a (40%) chance of showers Sunday night snow level 5,000′ low 30. Mostly cloudy with a (40%) chance of rain and snow showers Monday through Tuesday snow level 4,000′ falling to 3,500′ Monday night and Tuesday highs 44-40 low 27. Mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday snow level rising from 3,500′ to 4,500′ low 24 high 45. A good (50%) chance of rain and snow showers Wednesday night and Thursday snow level 4,000′ falling to 3,500′ low 24 high 46. Mostly cloudy with a  good (50%) chance Thursday night and (40%) Friday snow level 3,500′ rising to 6,000′ Friday low 28 high near 50.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

Sorry no one correctly answered my weekly weather quiz question. What is the difference between  freezing rain and sleet? Here is the correct answer. Freezing rain is rain that falls as water and then freezes to surfaces that are below freezing and sleet is made up of small irregularly shaped pieces of ice falling from the sky. I’ll have another Weather quiz question for you on Monday. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs.

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High Pressure (the arch-shaded and with blue arrows-moving ashore) is moving in to replace the trough of low pressure moving eastward away from us. High pressure is also moving in at the surface which will give us some more sunshine. A couple of storms will move through Oregon next week.

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Advisories:  A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 8 AM SATURDAY FOR THE  SOUTH CENTRAL  AND SOUTH OREGON COAST. A FREEZE WARNING IS IN EFFECT FROM 1 AM TO 8 AM SATURDAY FOR CENTRAL DOUGLAS COUNTY INCLUDING ROSEBURG, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Partly cloudy tonight and a mix of clouds and sun Saturday low 29 high 62. Mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday afternoon low 39 high 59. Partly cloudy Sunday evening then mostly cloudy with a (30%) chance of showers at night low 40. Mostly cloudy with a (30%) chance of showers Monday through Friday  highs 57-60 lows in the upper 30s.

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Forecast for the Umpqua Basin including Roseburg: Mostly clear tonight, partly cloudy Saturday morning with patchy fog then mostly cloudy with a slight (20%) chance of showers Saturday afternoon low 30 high 63. Mostly cloudy with a slight (20%) of showers Saturday night low 40. Mostly cloudy with a slight (40%) chance of showers Sunday and a slight (20% chance )Sunday night high 64 low near 40. Mostly  cloudy with a good (50%) chance of showers Monday and Monday night high 59 low 40. Rain and snow likely Tuesday with a (40%) chance of rain and snow showers Tuesday night high 59 low 39. Mostly cloudy with a (40%) chance of showers Wednesday and (30%) Wednesday night and Friday highs near 60 lows near 40.

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly clear this evening then partly cloudy tonight and Saturday morning then becoming mostly cloudy Saturday afternoon low 34 high 55. Mostly cloudy with a slight (20%) chance of evening showers inland and breezy (winds South 15-25 mph becoming Southeast 5-10 mph late at night) low 40. Mostly cloudy Sunday and Sunday night with a (40%) chance of showers Sunday high 53 low 40. A  (40%) chance of showers Monday and likely (60%) Monday night high near 55 low 42. Mostly cloudy with rain likely (60%) Tuesday with a good (50%) chance of showers Tuesday night, (40%) Wednesday through Thursday night highs 55-60 lows 40-44 . Mostly with a (30%) chance of showers Friday high near 60.

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Forecast for the Cascades of Lane County:   Partly cloudy tonight with a slight (20%) chance of rain and snow showers snow level 4,000′ late at night low 20. A mix of clouds and sun Saturday and warmer with a slight (20%) chance of showers snow level  3,000′ rising to 5,000′ high 46.  Mostly cloudy Saturday night with a (30%) chance of evening showers then a (30%) chance of rain or snow showers at night snow level 5,000′ falling to 4,500′ low 30. A slight (20%) chance of rain and snow showers Sunday morning then a (40%) chance of rain and snow showers in the afternoon snow level 4,000′ rising to 5,000′ high 43. Mostly cloudy with a (40%) chance of showers Sunday night snow level 5,000′ low 30. Mostly cloudy with a (40%) chance of rain and snow showers Monday through Tuesday snow level 4,000′ falling to 3,500′ Monday night and Tuesday highs 44-40 low 27. Mostly cloudy with a good (50%) chance of showers Tuesday night and Wednesday snow level rising from 3,500′ to 4,500′ low 24 high 45. A good (50%) chance of rain and snow showers Wednesday night and Thursday snow level 4,000′ falling to 3,500′ low 24 high 46. Mostly cloudy with a good (50%) chance Thursday night and (40%) Friday snow level 3,500′ rising to 6,000′ Friday low 28 high near 50.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

Today is your last chance to answer my weekly weather quiz question. What is the difference between  freezing rain and sleet? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs.

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High Pressure (the arch-shaded and with blue arrows-moving ashore) is moving away from us to be replaced, temporarily by  a low pressure trough (the “U” shape shaded with blue arrows in it) which has pushed a new frontal system through Oregon. High pressure will return for a while and then it’s back to low pressure and more storms next week.

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Advisories:  A FREEZE WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING FOR CENTRAL DOUGLAS COUNTY INCLUDING ROSEBURG, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: A mix of clouds and sun today with a slight (20%) chance of showers, just partly cloudy tonight high 56 low 32. A mix of clouds and sun and warmer Saturday then mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday highs 62-59 low 40. Partly cloudy Sunday night with a slight (20%) chance of showers low 42. Mostly cloudy with a (40%-50%) chance of showers Monday through Wednesday night and (30%) Thursday highs 57-53 lows near 39.

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with patchy fog this morning , breaking out to partly cloudy in the afternoon high 60. Partly cloudy tonight and Saturday morning with patchy fog then mostly cloudy with a slight (20%) chance of showers Saturday afternoon low 30 high 62. Mostly cloudy with a slight (20%) of evening showers then a slight (20%) chance showers late Saturday night low 40. Mostly cloudy with a slight (20%) chance of showers Sunday and  Sunday night and (30%) Monday highs 60-55 low near 40 . Mostly  cloudy with good (50%) chance of rain Monday night low 40. A  good (50%) chance of rain and snow Tuesday and Tuesday night high 55 low 39. Mostly cloudy with a (40%) chance of showers Wednesday  and (30%) Wednesday night and Thursday highs in the upper 50s low 38.

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy today with a slight (20%) chance of AM showers at the beaches, patchy fog inland then partly cloudy tonight and Saturday morning and becoming mostly cloudy Saturday afternoon with a slight (20%) chance of afternoon showers lows 34 highs 55. Mostly cloudy with a slight (20%) chance of evening showers inland Saturday night low 40. Mostly cloudy Sunday and  Sunday night with a slight (20%) chance of showers then a slight (20%) chance of rain Monday highs near 55 low 42-39. Mostly cloudy with a (20%) chance of rain Monday night through Tuesday night  lows 42-40 highs near 54 . Mostly cloudy with a (40%) chance of showers Wednesday through Thursday highs 57 lows near 40 .

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Forecast for the Cascades of Lane County:   A (30%) chance of scattered snow showers  today  snow level 3,000′ in the afternoon high 40. Partly cloudy tonight with a slight (20%) chance of evening snow showers snow level 3,500′ late at night low 22. A mix of clouds and sun Saturday and a bit warmer  free air freezing level  5,000′ high 49.  Mostly cloudy Saturday night  with a (30%) chance of showers snow level 5,500′ falling to 4,500′ low 27. A (40%) chance of rain and snow showers Sunday through Thursday snow level 4,000′ to 4,500′ falling to 3,500′ Tuesday rising to 4,000′  Tuesday night through Thursday  highs 47-40 lows 30-25.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

Here again is my weekly weather quiz question. What is the difference between  freezing rain and sleet? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs.

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High Pressure (the arch-shaded and with blue arrows-moving ashore) is moving away from us to be replaced, temporarily by  a low pressure trough (the “U” shape shaded with blue arrows in it) which has pushed a new frontal system through Oregon. High pressure will return for a while and then it’s back to low pressure and more storms next week.

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Advisories:  A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 8 AM FRIDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A FREEZE WARNING IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 8 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY INCLUDING ROSEBURG, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY. A FREEZE WATCH IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY MORNING FOR CENTRAL DOUGLAS COUNTY INCLUDING ROSEBURG, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:  Partly cloudy this evening and mostly cloudy with a slight (20%) chance of showers tonight low near 30. Partly cloudy Friday with a slight (20%) chance of showers, just partly cloudy Friday night high 56 low 34. A mix of clouds and sun and warmer Saturday then mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday highs 62-59 low 40. Partly cloudy Sunday night with a slight (20%) chance of showers low 42. Mostly cloudy with a (40%-50%) chance of showers Monday through Wednesday night and (30%) Thursday highs 57-53 lows near 39.

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Forecast for the Umpqua Basin including Roseburg: Partly cloudy this evening and mostly cloudy tonight and Friday morning, breaking out to partly cloudy in the afternoon low 28 high 60. Partly cloudy Friday night and Saturday morning with patchy fog then mostly cloudy with a slight (20%) chance of showers Saturday afternoon low 30 high 62. Mostly cloudy with a slight (20%) chance of of evening thundershowers then a slight (20%) chance showers late Saturday night low 40. Mostly cloudy with a slight (20%) chance of showers Sunday and  Sunday night and (30%) Monday highs 60-55 low near 40 . Mostly  cloudy with good (50%) chance of rain Monday night low 40. A  good (50%) chance of rain and snow Tuesday and Tuesday night high 55 low 39. Mostly cloudy with a (40%) chance of showers Wednesday  and (30%) Wednesday night and Thursday highs in the upper 50s low 38.

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy tonight and Friday with a slight (20%) chance of AM showers at the beaches, patchy fog inland then partly cloudy Friday night and Saturday morning and becoming mostly cloudy Saturday afternoon with a slight (20%) chance of coastal showers lows 34 highs 55. Mostly cloudy with a slight (20%) chance of evening showers inland Saturday night low 40. Mostly cloudy Sunday and  Sunday night with a slight (20%) chance of showers then a slight (20%) chance of rain Monday highs near 55 low 42-39. Mostly cloudy with a (20%) chance of rain Monday night through Tuesday night  lows 42-40 highs near 54 . Mostly cloudy with a (40%) chance of showers Wednesday through Thursday highs 57 lows near 40 .

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Forecast for the Cascades of Lane County:   Cloudy with a (30%) chance of snow showers and colder tonight snow level 2,500′ low 20. A (30%) chance of scattered snow showers Friday  snow level 3,500′ in the afternoon high 40. Partly cloudy Friday night with a slight (20%) chance of evening snow showers free air freezing 5,500′ falling to 5,000′ late at night low 22. A mix of clouds and sun Saturday and a bit warmer  free air freezing level 4,500′ rising to 5,000′ high 49.  Mostly cloudy Saturday night  with a (30%) chance of showers snow level 4,500′ low 27. A (40%) chance of rain and snow showers Sunday through Thursday snow level 4,000′ to 4,500′ falling to 3,500′ Tuesday rising to 4,000′ Tuesday night through Thursday  highs 47-40 lows 30-25.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

Here again is my weekly weather quiz question. What is the difference between  freezing rain and sleet? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs.

_______________

High Pressure (the arch-shaded and with blue arrows-moving ashore) is moving away from us to be replaced, temporarily by  a low pressure trough (the “U” shape shaded with blue arrows in it) which has pushed a new frontal system through Oregon. High pressure will return for a while and then it’s back to low pressure and more storms next week.

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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 3 PM TODAY FOR THE FOOTHILLS OF THE NORTH OREGON CASCADES ABOVE 1,500′ AND A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 3 PM TODAY FOR THE NORTH CASCADES AND THE CASCADES OF LANE COUNTY. A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 8 AM FRIDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A FREEZE WARNING IS IN EFFECT FRM MIDNIGHT TONIGHT UNTIL 8 AM FRIDAY FOR CENTRAL DOUGLAS COUNTY INCLUDING ROSEBURG, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield:  A mixture of clouds and sun with a few scattered morning showers and isolated afternoon showers then partly cloudy this evening and mostly cloudy with a slight (20%) chance of showers tonight high 54 low near 32. A mix of clouds and sun Friday with a (20%) chance of AM showers then a slight (20%) chance of afternoon sprinkles,  just partly cloudy Friday night high 56 low 34. A mix of clouds and sun and warmer Saturday then mostly cloudy with a slight (20%) chance of showers Saturday night and Sunday highs 62-57 low 35. Partly cloudy Sunday night with a slight (20%) chance of showers low 40. Mostly cloudy with a (30%) chance of rain Monday through Wednesday highs 57-53 lows near 39.

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain likely (60%) this morning tapering off to a slight (20%) chance this afternoon then just mostly cloudy tonight and Friday highs 54-59 low 20. Partly cloudy Friday night and Saturday morning then mostly cloudy Saturday afternoon low 36 high 65. Mostly cloudy with a slight (20%) chance of showers Saturday night through Sunday night lows near 40 highs 65-55 . Mostly  cloudy with a (20%) chance of rain Monday through Tuesday night, and a (30%-40%) chance of showers Wednesday  highs in the upper 50s lows 42.

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with AM rain likely (60%) tapering of this afternoon high 56.  Mostly cloudy tonight and Friday then partly cloudy Friday night and Saturday morning and becoming mostly cloudy Saturday afternoon low 37 highs 57. Mostly cloudy with a slight (20%) chance of showers Saturday night through Sunday night lows 40 high 54 . Mostly cloudy with a (20%) chance of rain Monday through Tuesday night highs 53-58 lows 42 . Mostly cloudy with a (40%) chance of showers Wednesday high 56.

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Forecast for the Cascades of Lane County:   Snow  and windy at times today (winds West 15-25 mph gusts to 50 mph) snow level at the surface 4-8″ of snow possible high near 34 . Cloudy with a (30%) chance of snow showers and colder tonight low 20. A (30%) chance of scattered snow showers Friday morning then a slight (20%) chance of snow showers in the afternoon snow level at the surface high 40. Partly cloudy Friday night with a slight (20%) chance of evening snow showers snow level 3,000′ low 25. A mix of clouds and sun Saturday with a slight (20%) chance of showers  in the afternoon snow level 4,500′ high 49.  Mostly cloudy Saturday night  with a (30%) chance of showers snow level 5,000′ low 27. A (40%) chance of rain and snow showers Sunday through Wednesday snow level 4,000′ falling to 3,500′ Tuesday rising to 4,000′ Tuesday night and 4,500′ Wednesday  highs 47-40 lows near 28.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

Here again is my weekly weather quiz question. What is the difference between  freezing rain and sleet? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs.

_______________

High Pressure (the arch-shaded and with blue arrows-moving ashore) is moving away from us to be replaced, temporarily by  a low pressure trough (the “U” shape shaded with blue arrows in it) which will push a new frontal system into Oregon. High pressure will return for a while and then it’s back to low pressure and more storms next week.

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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT THROUGH 6 PM THURSDAY FOR THE NORTH CASCADES AND THE CASCADES OF LANE COUNTY.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield:  Partly cloudy with a slight chance of rain this evening, becoming mostly cloudy at night with rain developing late tonight low 38. Mostly cloudy with AM rain Thursday then afternoon showers likely (60%) and much cooler high 48. Partly cloudy Thursday evening then mostly cloudy with a slight (20%) chance of showers Thursday night low 34. Mostly cloudy Friday morning with a slight (20%) chance of showers a mix of clouds and sun in the afternoon with a slight (20%) chance of afternoon sprinkles,  just partly cloudy Friday night high 54 low 33. A mix of clouds and sun and warmer Saturday then mostly cloudy with a slight (20%) chance of showers Saturday night through Sunday night lows near  36-38 highs 57-52. Mostly cloudy with a (30%) chance of rain Monday through Tuesday highs 52-55 low 35. A good (50%) chance of showers Tuesday night and (40%) Wednesday low 36 high 56.

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Forecast for the Umpqua Basin including Roseburg: Partly cloudy this evening then cloudy with rain late tonight low 40. Cloudy with AM rain Thursday then a slight (20%) chance of afternoon showers then mostly cloudy Thursday night  and Friday highs 50-57 low 36. Partly cloudy Friday night and Saturday morning then mostly cloudy with a slight (20%) chance of showers Saturday afternoon through Sunday night lows near 42 highs 59-54 . Mostly  cloudy with a (20%) chance of rain Monday and Monday night high 59 low 38. Mostly cloudy with a (40%) chance of rain and snow Tuesday, Tuesday night, and Wednesday  highs near 57 low 40.

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Partly cloudy this evening then becoming cloudy with rain late tonight  low 42. Cloudy with AM rain Thursday then a slight  (20%) chance of afternoon showers high 52.  Mostly cloudy Thursday night then mostly cloudy with a slight (20%) chance of showers Friday morning low 35 high 55. Partly cloudy Friday night and Saturday morning then mostly cloudy Saturday afternoon low 38 high 50. Mostly cloudy with a slight (20%) chance of showers Saturday night through Sunday night low 40 high 54 . Mostly cloudy with a (20%) chance of rain Monday through Tuesday night highs 53-58 lows 42 . Mostly cloudy with a (40%) chance of showers Wednesday high 56.

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Forecast for the Cascades of Lane County:  Mostly cloudy this evening with a slight (20%) chance of rain this evening then snow late tonight snow level 3,500′ 4-8″ of snow possible low 26.  Morning snow then afternoon then snow showers and colder Thursday afternoon snow level 3,500′ in the afternoon 6-10″ of snow possible high 34 . Cloudy with a (30%) chance of snow showers breezy and colder Thursday night (winds Southwest 5-15  mph gusts to 35 mph) low 20. A (30%) chance of scattered snow showers Friday morning then a slight (20%) chance of rain and snow showers in the afternoon snow level 3,000′ rising to 3,500′ high 35. Partly cloudy Friday night with a slight (20%) chance of evening snow showers snow level 3,000′ low 23. A mix of clouds and sun Saturday with a slight (20%) chance of rain and snow showers  in the afternoon snow level 3,500′ high 44.  Mostly cloudy Saturday night  with a (30%) chance of snow showers and a slight (20%) chance of rain showers snow level 4,500′ low 26. A (40%) chance of rain and snow showers Sunday and Sunday night snow level 4,000′ high near 40 low 25. Mostly cloudy with a (50%) chance of rain and snow Monday through Tuesday snow level 4,000′ falling to 3,500′ Tuesday highs 43-38 low 25 . Mostly cloudy with a good (50%) chance of  rain and snow showers Tuesday night and Wednesday snow level 3,500′ rising to 4,000′ Wednesday low 25 high 42.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

Here is my weekly weather quiz question. What is the difference between  freezing rain and sleet? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs.

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High Pressure (the arch -shaded and with blue arrows-moving ashore)  will build in making for clearing skies and dry today. Low pressure returns and still another storm system will move Southeastward into California for at least a slight chance of wet weather then it’s back to sunshine .

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Advisories: NONE AT THIS TIME.

________________

Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield:  A mix of clouds and sun after morning clouds and warmer today high 66. Partly cloudy this evening, becoming mostly cloudy at night with rain becoming likely by late night low 40. Mostly cloudy with AM rain Thursday then afternoon showers likely (60%)and possible small hail, but much cooler high 50. Partly cloudy with a slight (20%) chance of showers Thursday night low 33. Mostly cloudy Friday morning with a slight (20%) chance of showers then partly cloudy with a slight chance of afternoon sprinkles just partly cloudy Friday night high 54 low 32. A mix of clouds and sun Saturday then  mostly cloudy with a slight (20%) chance of showers Saturday night and a (30%) chance Sunday and Sunday night lows near  36-38 highs 57-52. Mostly cloudy with a (30%) chance of rain Monday through Tuesday highs 52-55 low 35.

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Forecast for the Umpqua Basin including Roseburg: Partly cloudy today and this evening then mostly cloudy with rain likely (60%) late tonight high 66 low 40. Cloudy with AM rain Thursday  then a good (50%) chance of afternoon rain and showers then mostly cloudy Thursday night  through Saturday highs 50-59 lows 34-36. A slight (20%) chance of showers Saturday night and a slight (20%) chance of rain and snow showers Sunday low 38 high 55. Mostly  cloudy with a slight (20%) chance of evening showers then a slight (20%) chance or rain and snow showers late at night and a (40%) chance of rain and snow showers Monday low 40 high 60. Mostly cloudy with a (40%) chance of rain and snow Monday night and Tuesday low 40 high 57.

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Partly cloudy today and this evening then becoming cloudy with rain likely (60%) late tonight  high 56 low 42. Cloudy with AM rain Thursday then a good (50%) chance of afternoon showers high 52.  Mostly cloudy Thursday night then mostly cloudy with a slight (20%) chance of showers Friday morning low 35 high 52. Mostly cloudy Friday night and Saturday then a slight (20%) chance of showers Saturday night through Sunday night lows 38-42 highs 50-53 . Mostly cloudy with a (20%) chance of showers Monday then a good (50%) chance of rain Monday night and Tuesday low 40 high 55.

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Forecast for the Cascades of Lane County:  AM clouds then a mix of clouds and sun today free air freezing level 6,500′ rising to 7,500′ this afternoon high 52. Partly cloudy this evening then mostly cloudy with a (30%) chance of rain late tonight snow level 6,500′ lowering to 4,500′ low 32. Mostly cloudy with AM rain and snow then afternoon snow and breezy (winds becoming West 15-25 mph with gusts 45 mph in the afternoon) and colder Thursday snow level 4,500′ falling to 1,500′-2,000′ in the afternoon 10″ of snow possible  high 34. Cloudy with snow showers breezy and colder Thursday night (winds West 15-25  mph gusts to 40 mph then decreasing to Southwest 10-15 mph late) low 20. Scattered snow showers Friday morning becoming isolated in the afternoon high 38. Partly cloudy Friday night with a slight (20%) chance of evening snow showers snow level 3,000′ low 23. A mix of clouds and sun Saturday with a slight (20%) chance of rain and snow showers snow level 3,500′  and mostly cloudy Saturday night  and Sunday with a (30%) chance of rain and snow showers snow level 4,500′ Saturday night and 3,000′ Sunday highs 46-42 low 22. Mostly cloudy with a (40%) chance of snow showers Sunday night and a good (50%) chance of snow Monday snow level 3,000′  low 25 high near 43 . Mostly cloudy with a good (50%) chance of snow Monday night and Tuesday snow level 3,000′ falling to 2,500′ Tuesday low 25 high 40.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

Here is my weekly weather quiz question. What is the difference between  freezing rain and sleet? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs.

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High Pressure (the arch -shaded and with blue arrows-moving ashore)  will build in making for clearing skies and dry through Wednesday. Low pressure returns and still another storm system will move Southeastward into California for at least a slight chance of wet weather then it’s back to sunshine by Friday.

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Advisories: NONE AT THIS TIME.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield: Mostly cloudy tonight with a slight (20%) chance of some sprinkles, then a mix of clouds and sun after morning clouds and warmer Wednesday low 36 high 64. Partly cloudy Wednesday evening, becoming mostly cloudy at night with rain becoming likely by late night low 40. Mostly cloudy with AM rain Thursday then afternoon showers and much cooler high 48. Mostly cloudy with a slight (20%) chance of showers Thursday night low 33. Partly cloudy Friday  and Friday night high 50 low 30. A mix of clouds and sun Saturday then partly cloudy at night with a slight (20%) chance of showers Saturday night through Sunday night lows near  36-40 highs 58-55. Mostly cloudy with a (30%) chance of showers Monday then a (40%) chance of rain Monday night and Tuesday highs 57-55 low 37 .

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy this evening then partly cloudy late tonight low near 40. Partly cloudy Wednesday and Wednesday evening then mostly cloudy with a (40%) chance of rain late Wednesday night high 66 low 40. Cloudy with AM rain Thursday  then afternoon showers then mostly cloudy Thursday night  through Saturday highs 52-59 lows 36. A slight (20%) chance of showers Saturday night and a slight (20%) chance of rain and snow showers Sunday low 38 high 55. Mostly  cloudy with a slight (20%) chance of evening showers then a slight (20%) chance or rain and snow showers late at night and a (40%) chance of rain and snow showers Monday low 37 high 62. Mostly cloudy with a (40%) chance of rain and snow Monday night and Tuesday low 40 high 55.

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Mostly cloudy tonight then partly cloudy Wednesday and Wednesday evening then becoming mostly cloudy with rain late along the coast and likely (60%) inland late lows 39 high 56. Cloudy with AM rain Thursday then a good (50%) chance of afternoon showers and breezy (winds Northwest 15-25 mph decreasing to 10-15 mph in the afternoon high 53.  Mostly cloudy Thursday night then mostly cloudy with a slight (20%) chance of showers Friday morning low 37 high 51. Mostly cloudy Friday night and Saturday then a slight (20%) chance of showers Saturday night through Sunday night lows 38-42 highs 50-53 . Mostly cloudy with a (20%) chance of showers Monday then a good (50%) chance of rain Monday night and Tuesday low 40 high 55.

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Forecast for the Cascades of Lane County:  Mostly cloudy with a (40%) chance of evening then a () chance of rain and snow late mainly North of Santiam pass snow level 4,500′ low 24. AM clouds then a mix of clouds and sun Wednesday free air freezing level 7,000′ high 52. Partly cloudy Wednesday evening then mostly cloudy with a slight (20%) chance of rain Wednesday night with rain developing North of Santiam Pass with a (40%) chance South of the pass snow level 6,500′ high 49 low 32. Mostly cloudy with AM rain or snow then showers in the afternoon windy (winds becoming West 20-30 mph with gusts 40-60 mph on the ridges and higher terrain) and colder Thursday snow level 5,000′ falling to 3,500′ high 34. Cloudy with showers likely (60%) Thursday night and windy (winds West 20-30 mph with gusts 40-60 mph on the ridges and higher terrain then decreasing to 10-20 mph late) snow level 3,500′ low 20. A slight (20%) chance of snow showers Friday snow level 3,000′ high 38. Partly cloudy Friday night with a slight (20%) chance of showers snow level 3,000′ low 23. A mix of clouds and sun Saturday free air freezing level 4,500’and partly cloudy Saturday night  and Sunday with a (30%) chance of showers snow level 5,000′ Saturday night and 3,500′ Sunday highs 46-42 low 22. Mostly cloudy with a (40%) chance of  showers Sunday night and Monday snow level 3,000′ falling to 2,500′ Monday highs low 25 near 45 . Mostly cloudy with a good (50%) chance of snow or rain Monday night and Tuesday snow level 3,000′ low 25 high 40.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.

Here is my weekly weather quiz question. What is the difference between  freezing rain and sleet? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win one free week of personalized forecasts tailored to your needs.

_______________

High Pressure (the arch -shaded and with blue arrows-moving ashore)  will build in making this afternoon (maybe a sprinkle along the foothills) then dry through Wednesday.  Low pressure returns and still another storm system will move toward the Oregon coast Wednesday night and Thursday bringing back the wet weather.

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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL NOON  TODAY FOR THE NORTH CASCADES (2-5″OF SNOW POSSIBLE THIS MORNING SNOW LEVEL RISING FROM 2,500′ TO 3,000′ IN THE AFTERNOON) , BUT NOT INCLUDING THE WILLAMETTE PASS AREA.

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Here are your detailed forecasts. **

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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield: Mostly cloudy with showers likely (60%) this morning and a decreasing chance this afternoon high 54. Mostly cloudy this evening then partly cloudy tonight with a slight (20%) chance of rain then a mix of clouds and sun and warmer Wednesday low 38 high 64. Partly cloudy Wednesday evening, becoming mostly cloudy at night with a good (50%) chance of rain low 40. Mostly cloudy with rain and becoming breezy and cooler Thursday high 50. Partly cloudy with a (30%) chance of showers Thursday night and a slight (20%) chance Friday through Sunday night lows near 33-37 highs 54-57. Mostly cloudy with a (30%) chance of showers Monday high 56.

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy today with showers likely (60%) this morning tapering off in the afternoon high 54. Mostly cloudy tonight low near 40.   Partly cloudy Wednesday high 64. Partly cloudy in the evening and mostly cloudy with a (40%) chance of rain Wednesday night and rain likely (60%) Thursday low 40 high 52. Just a slight (20%) chance of rain and snow showers and colder Thursday night low 34. Mostly cloudy with a slight (20%) chance of rain and snow showers Friday morning and a slight (20%) of rain showers in the afternoon and Friday night high 54 low 36. A slight (20%) chance of rain and snow showers Saturday morning then a slight (20%) chance of rain showers in the afternoon and Saturday night through Sunday and (30% ) Sunday night highs 62-57 lows 40. Mostly cloudy with a (30%) chance of showers Monday high 60.

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Mostly cloudy with AM showers likely (60%) chance then decreasing chance in the afternoon high 55. Mostly cloudy cloudy tonight then partly cloudy Wednesday and Wednesday evening then becoming mostly cloudy with a (40% ) chance of rain inland late and a good (50%) chance of rain late at the coast lows 40-45 high 57 . Morning rain likely (60%) then a good (50%) chance of  afternoon rain Thursday and a slight (20%) chance of showers at night  high 55 low 37. Mostly cloudy with a slight (20%) chance of showers Friday through Sunday night highs 53-56 lows 38-42. Mostly cloudy with a (30%) chance of showers Monday high 56.

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Forecast for the Cascades of Lane County:  Morning snow then rain and snow showers this afternoon snow level 2,500′ rising to 4,000′ 1-4″ of snow possible high 38. Mostly cloudy with a (40%) chance of evening rain and snow then slight (20%) chance of rain and snow late tonight snow level 4,500′ low 26. AM clouds then a mix of clouds and sun Wednesday free air freezing level 7,000′ and partly cloudy Wednesday evening then mostly cloudy with a slight (20%) chance of rain Wednesday night snow level 6,500′ high 49 low 32. Mostly cloudy with rain and snow and colder Thursday snow level 4,500′ falling to 3,500′ high 37. Scattered snow showers Thursday night and a (30%) chance of snow showers Friday snow level 2,500′ low 24 high 38. Partly cloudy Friday night free air freezing level 4,500′ low 20. Partly cloudy with a slight (20%) chance of showers and a (40%) chance of rain and snow showers Saturday night  snow level 4,000′ rising to 5,000′ Saturday night high 48 low 22. Mostly cloudy with a (40%) chance of rain and snow showers Sunday through Monday snow level 3,500′ Sunday, 3,000′ Sunday night, and 2,500′ Monday highs near 42 low 25.

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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.