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Advisories: NONE AT THIS TIME.

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An upper air trough of low pressure (“U” shape on the brown line) is bringing us enough marine air to cool our high temperatures down to more comfortable levels. It will move to the east and be replaced by another upper level low. Weak waves will bring increased chances of fog and drizzle along the coast and some increase in late night and early morning clouds inland.

Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Cloudy this AM, a mix of clouds and sun late this afternoon, partly cloudy in the evening, mostly cloudy tonight and Thursday AM, mostly sunny in the afternoon, clear in the evening, partly cloudy Thursday night, mostly cloudy Friday AM, sunny in the afternoon, then mostly clear Friday night highs 77-86 lows 52-48 warming to 54 Friday night. AM clouds, mostly sunny Saturday afternoon, mostly clear in the evening, mostly cloudy Saturday night, AM clouds, mostly sunny Sunday afternoon, mostly clear in the evening, mostly cloudy Sunday night and Monday AM, mostly sunny Monday afternoon, partly cloudy at night and Tuesday AM, then mostly sunny Tuesday afternoon highs 88-82 lows near 50. (seasonal averages high 84 low 52)

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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with patchy fog this AM, partly cloudy this afternoon and evening, mostly cloudy with patchy fog late tonight and Thursday AM, sunny in the afternoon, mostly clear in the evening, partly cloudy late Thursday night and Friday AM, sunny in the afternoon, then mostly clear Friday night highs 83-90 lows near 56. Mostly sunny Saturday through Tuesday with mostly clear nights highs 92-86 lows near 57. (seasonal averages high 86 low 56)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with patchy coastal fog this AM, mostly cloudy this afternoon, mostly cloudy with patchy coastal fog late tonight and Thursday AM, mostly cloudy in the afternoon and Thursday night, mostly sunny Friday afternoon, then partly cloudy Friday night highs near 65 lows near 55. Partly cloudy Saturday through Tuesday highs 67-62 lows near 55. (seasonal averages high 65 low 53).

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Forecast for the Cascades of Lane County: Partly cloudy today, mostly clear tonight, partly cloudy Thursday AM, sunny Thursday afternoon, clear Thursday night, mostly sunny Friday, mostly clear Friday night free air freezing level 14,000 ft. today through Thursday night, 15,000 ft. Friday, then 16,000 ft. Friday night highs 72-76 lows 48-53. Mostly sunny Saturday through Tuesday with mostly clear nights free air freezing level 15,000 ft. Saturday through Monday night, then 14,000 ft. Tuesday highs 77-72 lows 54-48.

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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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