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An upper level high pressure ridge (“Arch”shape in the jet stream) is building in over us and that should mean it will stay dry, but a frontal system that is moving through Washington is going to slide through and change that. We are looking at a wet night tonight and a wet Friday then dry. That should be good for the “Champions Parade” at 10 AM Saturday for the Ducks 12-0 season and BCS run. May be a little AM fog, but no rain. Remember that, particularly this time of the year, when it’s not raining it is usually fogging.
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Advisories: SPECIFIC BULLETINS FOR FLOOD WATCHES/WARNING
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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 slight (20%) chance of evening rain, a good (50%) chance of rain late tonight (0.10 in. of rain possible) with patchy fog late night and Friday AM, mostly cloudy with rain Friday afternoon (0.25 in. of rain possible), mostly cloudy with a (40%) chance of showers Friday evening and a (30%) chance of showers late at night, AM clouds and patchy fog, then a mix of clouds and sun Saturday, and partly cloudy with patchy fog late Saturday night and early Sunday AM lows 39-35 then warming to 40 Sunday night highs 50-54. A mix of clouds and sun Sunday through Thursday, and partly cloudy at night highs 52-54 lows 42-35. (seasonal averages highs 47 low 33)
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Forecast for the Umpqua Basin including, Roseburg: Partly cloudy this evening, then mostly cloudy with areas of fog late tonight and Friday AM, mostly cloudy with a slight (20%) chance of rain Friday afternoon, mostly cloudy with a (40%) chance of showers Friday night, AM clouds and fog then partly cloudy Saturday, mostly clear Saturday evening and partly cloudy with areas of freezing fog late Saturday night and early Sunday AM lows 36-40 highs 54-49. Becoming mostly sunny Sunday, mostly clear in the evening, then partly cloudy with areas of fog Sunday night, partly cloudy Monday through Thursday highs 49-57 lows 33-39. (seasonal averages high 50 low 35)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this evening, mostly cloudy tonight, cloudy with a slight (20%) chance of coastal rain Friday AM and afternoon rain likely (60%), a (30%) chance of afternoon rain inland, cloudy with a good (50%) chance of showers Friday night, mostly cloudy with patchy fog Saturday AM, then partly cloudy Saturday afternoon, mostly clear Saturday night, mostly sunny Sunday, and mostly clear Sunday night lows 40-35 highs near 54. Partly cloudy Monday through Thursday highs near 54 lows near 37. (seasonal averages high 53 lows 40).
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Forecast for the Cascades of Lane County: Mostly cloudy with a (30%) chance of rain tonight (0.10 in. of rain possible), mostly cloudy with rain Friday (0.25 in. of rain possible), a (40%) chance of showers Friday night (0.10 in. of rain possible), a mix of clouds and sun Saturday afternoon, and mostly clear Saturday night, mostly sunny Sunday, and partly cloudy Sunday night snow level 8,000 ft. tonight, 8,000 ft. Friday, falling to 5,500 ft. Friday night, free air freezing level 7,000 ft. Saturday and 8,000 ft. Saturday night, 6,500 ft. Sunday, 6,000 ft. Sunday night lows 34-30 highs 41-46. A mix of clouds and sun Monday through Thursday with partly cloudy nights Free air freezing level 7,500 ft. Monday, 6,000 ft. Monday night, 7,500 ft. Tuesday, 7,000 ft. Tuesday night, 8,000 ft. Wednesday, 9,000 ft. Wednesday night, and 8,000 ft. Thursday highs near 44 lows 32-38.
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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.