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Advisories: NONE AT THIS TIME.
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A though of low pressure (“U” shape on the yellow line) marched to the south and east away from us allowing a high pressure ridge (“Arch” shape on yellow line) to take over and bring us lots of sunshine for the rest of the weekend, then the chance of rain returns for the rest of the week. A frontal system moved to the east and south into northern California. Yet another frontal system (shown still offshore) will approach the coast, but it will slow down so we can have more sunshine. That frontal system will come ashore early in the week, as long as it doesn’t speed up a bit and start the rain earlier in the day Sunday.
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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 this AM, partly cloudy this afternoon, increasing clouds and becoming cloudy tonight with a good (50%) chance of evening rain, rain late tonight (0.20 in. of rain possible), AM rain Monday, showers likely (60%) in the afternoon (0.40 in. of rain possible), partly cloudy with a good (50%) chance of showers Monday evening, a mix of clouds and sun Tuesday AM, mostly cloudy with a slight (20%) chance of sprinkles or light rain Tuesday afternoon and evening, cloudy with a good (50%) chance of rain Tuesday night highs 63-56 lows 47-40. Mostly cloudy with rain likely (60%) Wednesday, a (40%) chance of showers Wednesday night, mostly cloudy with a (30%) chance of rain Thursday, mostly cloudy with rain likely (60%) Thursday night, rain likely (60%) Friday, then mostly cloudy with a good (50%) chance of of rain Friday night and Saturday highs 55-62 lows 40-46. (seasonal averages high 61 low 39)
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Forecast for the Umpqua Basin including Roseburg: Partly cloudy this AM, mostly cloudy with a slight (20%) chance of afternoon rain, rain tonight (0.15 in. of rain possible), rain Monday AM, showers in the afternoon (0.15 in. of rain possible), mostly cloudy with a (30%) chance of scattered showers Monday night (0.25 in. of rain possible), just mostly cloudy and warmer Tuesday afternoon, then mostly cloudy with a good (50%) chance of showers Tuesday night lows 49-38 warming to 45 Tuesday night highs 67-57 warming to 62 Tuesday. Mostly cloudy with showers likely (60%) Wednesday, a (40%) chance of showers Wednesday night, a good (50%) chance of rain Thursday, mostly cloudy with rain likely (60%) Thursday night and Friday, then mostly cloudy with a good (50%) chance of showers Friday night and Saturday (warmer) highs 59-64 cooling to 57 Friday and warming to near 65 Saturday lows 43-46. (seasonal averages high 62 low 42)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with a slight (20%) chance of rain this afternoon (under 0.10 in. of rain possible), evening rain likely (60%), rain late tonight (0.35 in. of rain possible) and Monday AM, showers Monday afternoon (0.30 in. of rain possible) and breezy (wind: SW 15-25 mph), mostly cloudy in the evening, with a slight (20%) chance of coastal showers Monday evening, partly cloudy Monday night, just mostly cloudy Tuesday, then mostly cloudy with showers likely (60%) Tuesday night lows 47-40 then warming to near 44 Tuesday night highs 55-52 warming to 56 Tuesday. Mostly cloudy with showers Wednesday, a (40%) chance of showers Wednesday night, a good (50%) of rain Thursday, mostly cloudy with rain likely (60%) Thursday night and Friday, then mostly cloudy with a good (50%) chance of rain Friday night and Saturday highs 53-58 lows 44-46. (seasonal averages high 55 low 43).
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Forecast for the Cascades of Lane County: Partly cloudy to mostly cloudy this afternoon, mostly cloudy with a slight (20%) chance of evening rain, rain late tonight and Monday AM, mostly cloudy with showers Monday afternoon, evening rain and snow showers likely (60%), a slight (20%) chance of rain and snow showers late Monday night, mostly cloudy with of sprinkles and snow Tuesday afternoon, a slight (20%) chance of rain and snow in the evening, then mostly cloudy with a good (50%) chance of rain Tuesday night free air freezing level 6,000 ft. rising to 7,000 ft. this afternoon, snow level 6,000 ft. tonight and Monday, 5,500 ft. falling to 4,000 ft. late Monday night, 5,000 ft. Tuesday and Tuesday night highs 50-45 lows 36-30 warming to near 35 Tuesday night. Mostly cloudy with rain and snow likely (60%) Wednesday, a good (50%) chance of rain and snow showers Wednesday night, mostly cloudy with a (40%) chance of rain and snow Thursday, rain likely (60%) Thursday night and Friday, mostly cloudy with a good (50%) chance of rain Friday night, then a mix of clouds and sun with a good (50%) chance of rain Saturday snow level 4,500 ft. Wednesday, 4,000 ft. Wednesday night, 5,000 ft. Thursday, 7,500 ft. Thursday night, then 8,000 ft. Friday and Friday night, then 7,500 ft. Saturday highs 40-52 lows 30-35.
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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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