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Advisories: NONE AT THIS TIME.
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A weak high pressure ridge (“arch” on the orange jet stream line) will start to strengthen up again and give us some dry days. High pressure at the surface will combine with the upper air ridge to clear us out for some sunshine Monday and Tuesday, really. Another upper level low (“U” shape on jet stream line) will set up off the coast and a frontal system will combine to possibly bring back the rain by the middle and end of next week.
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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 and warmer today, mostly clear with patchy fog tonight, patchy fog early Monday AM, mostly sunny and warmer Monday afternoon, mostly clear with patchy fog Monday night and Tuesday AM, mostly sunny Tuesday afternoon, then partly cloudy with a slight (20%) chance of showers Tuesday night highs 66-70 lows 43-47 cooling to near 44. Partly cloudy with a slight (20%) chance of showers Wednesday, mostly cloudy Wednesday night, a slight (20%) chance of rain Thursday, a (30%) chance of rain at night, a good (50%) chance of rain Friday and Friday night, then a (40%) chance of rain Saturday highs 66-62 lows near 45. (seasonal averages high 64 low 41)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy this AM, partly cloudy this afternoon, mostly clear tonight, patchy AM fog then sunny Monday, mostly clear Monday night, sunny in the AM, partly cloudy Tuesday afternoon, then mostly cloudy with a slight (20%) chance of showers Tuesday night highs 70-75 cooling to near 70 Tuesday lows 45-50. Mostly cloudy with a slight (20%) chance of showers Wednesday through Thursday, then mostly cloudy with a (30%) chance of showers Thursday night through Saturday highs 66-63 warming to 67 Friday and cooling to near 63 Saturday lows 44-49 falling to near 45 Friday night. (seasonal averages high 66 low 45)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy this AM with patchy coastal fog, partly cloudy afternoon, mostly clear tonight, sunny Monday, mostly clear with patchy fog Monday night, mostly cloudy at the shore Tuesday, AM sun with patchy fog inland then mostly cloudy in the afternoon, a (30%) chance of showers Tuesday night, then mostly cloudy with a slight (20%) chance of showers Wednesday and Wednesday night highs 64-68 cooling to 65 Wednesday lows 46-52. Mostly cloudy with a (30%) chance of showers Thursday, a (40%) chance of showers Thursday night, then mostly cloudy with a (40%) chance of showers Friday through Saturday highs 63-60 lows near 50. (seasonal averages high 61 low 46).
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Forecast for the Cascades of Lane County: Mostly cloudy with a slight (20%) chance of showers this AM, a mix of clouds and sun in the afternoon, partly cloudy in the evening, mostly clear tonight, mostly sunny Monday, clear Monday night, mostly sunny Tuesday, then partly cloudy with a slight (20%) chance of showers Tuesday night snow level above 8,000 ft. today, free air freezing level 10,000 ft. tonight, 13,000 ft. Monday, 14,000 ft. Monday night and Tuesday, then snow level above 8,000 ft. Tuesday night highs 55-64 lows 38-34. a mix of clouds and sun with a (30%) chance of showers Wednesday, a slight (20%) chance of rain Wednesday night and a mix of clouds and sun with a slight (20%) chance of rain Thursday, mostly cloudy with a (30%) chance of rain Thursday night, then mostly cloudy with a good (50%) chance of rain Friday through Saturday snow level above 8,000 ft. Wednesday through Saturday night highs 55-47 lows 36-33.
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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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