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A trough of low pressure (shaded area that’s “U” shaped )  is moving to the east and spreading south and high pressure is moving in after it. A weak frontal system has been coming through the state.  As the low pressure moves out high pressure behind it gave us a short brighter period Saturday, but tit should be even better today.  The next storm system will be moving in tonight and  Monday (Here is its position Tuesday morning) bringing with it more precipitation.

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Advisories: NONE AT THIS TIME.

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The Pollen Count Forecast for the Eugene-Springfield area : Trees HIGH, Grass LOW, and Weeds ABSENT. From Allergy and Asthma Research Group.

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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:  AM clouds look like they will hang around more than I thought today but there should still be peeks of sunshine and No Rain (a good day for the Eugene Marathon) then mostly cloudy with a (30%) chance of evening rain and rain likely (60%) late tonight lows 37 high 66. Mostly cloudy with rain Monday AM and showers likely (60%) in the afternoon then partly cloudy with a (30%) chance of showers Monday night  low 40. Mostly cloudy with a () chance of showers Tuesday through Wednesday highs 59 Monday, 53 Tuesday, and 60 Wednesday low 35. Partly cloudy with a slight (20%) chance of showers Wednesday night through Thursday night lows 38-42 highs near 59-62. Partly cloudy with a slight (20%) chance of showers Friday and Friday night high 62 low 42. Partly cloudy with a (30%) chance of showers Saturday high 65 .

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Forecast for the Umpqua Basin including Roseburg:  Mostly cloudy this morning and partly cloudy this afternoon then mostly cloudy tonight with a slight (20%) chance of rain lows 40-45 high 66. Mostly cloudy with AM rain likely  (60%) Monday and a (30%) chance of rain Monday night snow level 3,500 ft. Monday night lowering to 3,000 ft. late at night high 60 low 40. Mostly cloudy with a (30%) chance of showers Tuesday through Wednesday highs 58-60 low 36. Just a slight (20%) chance of showers Wednesday night and Thursday low 40 highs 66. Partly cloudy with a slight (20%) chance of showers Thursday night and Friday low 42 high 67. Mostly cloudy with a slight (20%) chance of showers Friday night and Saturday low 42 high 68.

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Mostly cloudy today with a (30%) chance of rain tonight high 62 low 47. Mostly cloudy with AM rain likely (60%) Monday then rain likely (60%) in the afternoon then a (30%) chance of afternoon rain Monday night high 52 low 40. Mostly cloudy with a (30%) chance of showers Tuesday through Wednesday snow level highs 56-58  low 40. Mostly cloudy with just a slight (20%) chance of showers Wednesday night and Thursday a slight (20%) chance of showers Friday low 42 high 62. Mostly cloudy with a slight (20%) chance of showers Friday night and Saturday low 44  high 62.

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Forecast for the Cascades of Lane County:  Mostly cloudy this morning with a slight (20%) chance of a light shower and mostly cloudy and a bit warmer in the afternoon free air freezing level 4,000 ft. rising to 7,000 ft. then mostly cloudy with a (20%) chance of evening rain then rain late tonight snow level 7,000 ft. tonight high 54 low near 32. Mostly cloudy with AM rain and afternoon showers Monday and windy (winds Southwest 20-30 mph gusts to 45 mph) 2-5″ of snow possible, snow level 5,500 ft. falling to 3,500 ft. in the afternoon high 47. Mostly cloudy breezy and cooler with a (30%) chance of rain and snow showers Monday night snow level 2,500 ft. late at night then mostly cloudy with a (30%) chance of snow showers likely (60%) Tuesday low 23 high 37. Mostly cloudy with a () chance of  snow showers  Tuesday night and partly cloudy with a (30%) chance of rain and snow showers Wednesday snow level 3,000 ft. rising to 4,500 ft. low 26 high near 44. Mostly cloudy with a slight (20%) chance of rain and snow showers Wednesday night and a slight (20%) chance of showers Thursday through Friday night snow level 4,000 ft. rising Wednesday to 4,500 ft., 4,000 ft. Wednesday night and 5,000 ft. Thursday and 4,500 ft. Thursday night rising to 7,000 ft. Friday lows near 28-30  highs 48-53. Partly cloudy with a (30%) chance of showers Saturday snow level 5,000 ft. high 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.