Apr
08.
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An upper air trough of low pressure (“U” shape) is moving South through Oregon and has brought with it colder air from the Northwest. Saturday will start out nice, but the clouds will increase and the precipitation will be returning by late afternoon or evening. Another frontal system should be moving in Saturday night and Sunday (position shown is Monday AM).
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Advisories: A FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 9 AM SATURDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST, AND CENTRAL DOUGLAS COUNTY. A FREEZE WARNING IS IN EFFECT FROM 3 AM UNTIL 9 AM SATURDAY FOR 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, a mix of clouds and sun Saturday AM, becoming mostly cloudy Saturday afternoon, mostly cloudy with a (40%) chance of rain Saturday night (0.10 in. of rain possible), rain likely (60%) Sunday (0.25 in. of rain possible) and Sunday night (0.25 in. of rain possible), cloudy with a good (50%) chance of showers Monday, then mostly cloudy with a (30%) chance of showers Monday night lows 32-42 highs 59-49. Partly cloudy with a (40%) chance of showers Tuesday, mostly cloudy with a (40%) chance of showers Tuesday night and Wednesday, then mostly cloudy with a good (50%) chance of rain Wednesday night through Friday highs 53-57 lows 32-42. (seasonal averages high 59 low 38)
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Forecast for the Umpqua Basin including, Roseburg: Partly cloudy tonight with areas of frost late at night and early Saturday AM, mostly cloudy in the afternoon, a (40%) chance of rain Saturday night, cloudy with a good (50%) chance of rain Sunday, evening rain likely (60%), rain late Sunday night (snow level 3,500 ft. late), cloudy with AM rain and snow showers likely (60%) Monday, then a good (50%) chance of rain and snow showers Monday afternoon and night lows 35-43 highs 62-50. Mostly cloudy with a slight (20%) chance of AM showers Tuesday, a slight (20%) chance of afternoon rain, a (40%) chance of rain Tuesday night, a (40%) chance of rain and snow Wednesday AM, a good (50%) chance of rain in the afternoon and evening, a (40%) chance of rain and snow late Wednesday night, mostly cloudy with rain likely (60%) Thursday and Thursday night, then mostly cloudy with a (40%) chance of rain Friday highs 54-59 lows 40-46. (seasonal averages high 63 low 40)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this evening, mostly cloudy tonight with patchy frost late at night and early Saturday AM, mostly cloudy Saturday afternoon, becoming cloudy Saturday night with a good (50%) chance of rain, cloudy with a (40%) chance of rain and breezy (wind: S 15-25 mph) Sunday and breezy (wind: S 20-25 mph gusts to 40 mph shifting to SW 15 mph late) Sunday night, cloudy with AM showers likely (60%) Monday, a good (50%) chance of showers Monday afternoon, then mostly cloudy with a slight (20%) chance of showers Monday night lows 37-47 cooling to 38 by Monday night highs 52-55 cooling to 50 Monday. Mostly cloudy with a slight (20%) chance of rain in the afternoon, a (40%) chance of rain Tuesday night and a good (50%) chance of rain Wednesday, rain likely (60%) Wednesday night through Thursday night, then cloudy with a good (50%) chance of rain Friday highs from 52-55 and back near 50 Thursday lows 39-45. (seasonal averages high 57 low 42).
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Forecast for the Cascades of Lane County: Partly cloudy tonight, a mix of clouds and sun with a slight (20%) chance of snow Saturday afternoon, mostly cloudy with a good (50%) chance of rain and snow Saturday night, rain and snow Sunday (3-6 in. of snow possible, 0.25 in. of rain possible), rain and snow likely (60%) Sunday night (6-10 in. of snow possible, 0.50 in. of rain possible), snow showers likely (60%) Monday, then a (30%) chance of snow showers Monday night free air freezing level 4,500 ft. tonight, snow level 3,500 ft. Saturday, 4,000 ft. Saturday night, 5,000 ft. Sunday, then falling to 5,500 ft, Sunday night, 5,000 ft. early Monday falling to 2,000 ft. in the afternoon, then 3,000 ft. Monday night lows 18-29 falling to 19 Monday night highs 43-49 falling to near 32 Monday. Mostly cloudy with a good (50%) chance of rain and snow showers Tuesday through Wednesday, snow likely (60%) Wednesday night and Thursday, then rain and snow likely (60%) Thursday night and Friday snow level 3,500 ft. Tuesday, then 3,000 ft. Tuesday night, 3,000 ft. Wednesday, 2,500 ft Wednesday night and Thursday, 4,000 ft. Thursday night, then 4,500 ft. Friday highs 38-42 lows 22-29.
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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.