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Advisories: NONE AT THIS TIME.
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A weak high pressure ridge (“Arch” shape on yellow line) will be moving away from the Pacific Northwest with a low pressure trough (“U” shape on the yellow line) pushing in behind it. That means it’s back to a wet weather pattern for the workweek. A frontal system (shown offshore) will move in Monday bringing more clouds and rain to the 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 and Albany-Corvallis: Partly cloudy with patchy fog late tonight and Monday AM, a mix of clouds and sun Monday afternoon, mostly cloudy with a good (50%) chance of scattered showers and a slight (20%) chance of thunderstorms in the evening, a (40%) chance of showers Monday night (under 0.10 in. of rain possible, more in storms), mostly cloudy with a slight (20%) chance of showers Tuesday AM, a slight (20%) chance of showers in the afternoon and evening, mostly cloudy late Tuesday night, mostly cloudy with a (40%) chance of showers Wednesday AM, showers likely (60%) in the afternoon, then mostly cloudy with rain Wednesday night lows 49-52 cooling to 48 Wednesday night highs 78-64. Mostly cloudy with rain Thursday AM, showers in the afternoon, a (40%) chance of showers Thursday night, mostly cloudy with a slight (20%) chance of showers Friday and Friday night, a mix of clouds and sun with a slight (20%) chance of showers Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night, then a mix of clouds and sun with a slight (20%) chance of rain Sunday highs 57-53 lows 42-45. (seasonal averages high 62 low 40)
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Forecast for the Umpqua Basin including Roseburg: Isolated thunderstorms this evening, mostly clear late tonight, partly cloudy Monday AM, mostly cloudy and cooler with a slight (20%) chance of scattered thunderstorms Monday afternoon and evening, a (40%) chance of showers late Monday night, mostly cloudy with a slight (20%) chance of showers Tuesday AM, partly cloudy with a slight (20%) chance of thunderstorms in the afternoon and evening,mostly cloudy late Tuesday night, mostly cloudy with a slight (20%) chance of showers Wednesday AM, a (40%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon and evening, then rain late Wednesday night lows 53-56 cooling to near 50 Wednesday night highs 80-70. Mostly cloudy and cooler Thursday , showers likely (60%) and colder Thursday night, a (30%) chance of showers Friday, a slight (20%) chance of showers Friday night, a (40%) chance of showers Saturday, a slight (20%) chance of showers Saturday night, then just mostly cloudy Sunday highs 59-65 lows 44-46. (seasonal averages high 64 low 43)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this this evening, mostly cloudy with patchy coastal fog late tonight and Monday AM with isolated showers in the afternoon, partly cloudy inland in the AM then mostly cloudy with isolated afternoon thunderstorms inland, mostly cloudy with a (30%) chance of scattered evening coastal showers, a slight (20%) chance of scattered inland showers and thunderstorms in the evening with a (30%) chance of showers late Monday night, mostly cloudy with a slight (20%) chance of AM inland showers with a slight (20%) chance of thunderstorms Tuesday afternoon, partly cloudy with a slight (20%) chance of inland evening thunderstorms and mostly cloudy at night, mostly cloudy at the shore Tuesday night, cloudy with a slight (20%) chance of showers Wednesday AM, a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday afternoon, then mostly cloudy with rain Wednesday night lows 49-52 cooling to 46 Wednesday night highs 59-62. Mostly cloudy with rain Thursday, showers likely (60%) Thursday night,a slight (20%) chance of showers Friday through Saturday night, then just mostly cloudy Sunday highs near 56 lows 44-46. (seasonal averages high 56 low 44).
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Forecast for the Cascades of Lane County: Partly cloudy tonight, a mix of clouds and sun Monday with a good (50%) chance of showers or thunderstorms (under 0.10 in. of rain possible), showers likely (60%) and a slight (20%) chance of isolated thunderstorms Monday afternoon and evening (under 0.10 in. of rain possible, more in thunderstorms), mostly cloudy with a good (50%) chance of showers late Monday night, a mix of clouds and sun with a (40%) chance of showers Tuesday, a (30%) chance of showers Tuesday and Tuesday evening, a slight (20%) chance of showers late at night, a mix of clouds and sun with a (40%) chance of showers Wednesday AM, showers likely (60%) in the afternoon, then mostly cloudy with rain Wednesday night free air freezing level 12,000 ft. tonight and Monday, snow level above 8,000 ft. Monday night through Tuesday night, then 8,000 ft. Wednesday and Wednesday night lows 40-42 highs 67-53. Mostly cloudy with rain and snow Thursday AM, rain and snow showers in the afternoon, rain and snow showers likely (60%) Thursday night, mostly cloudy with a good (50%) chance of rain and snow showers Friday, a (40%) chance of rain and snow showers Friday night through Saturday night, then a mix of clouds and sun with a slight (20%) chance of rain Sunday snow level 5,500 ft. falling to 4,500 ft. Thursday afternoon, 4,000 ft. Thursday night through Friday night, 4,500 ft. Saturday, 6,000 ft. Saturday night, then 7,000 ft. Sunday highs 46-42 lows 29-43.
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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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Get your local Eugene-Springfield news on-line at Eugene Daily News.com.
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