An upper level trough of low pressure (the “U” shaped dip in the yellow line) is moving eastward and that means it will stay cool today then start to warm up again Monday, but another trough will move in about Wednesday with no significant chance. It will warm up later in the week into the weekend and it should stay dry.

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Advisories:   NONE AT THIS TIME.

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The Updated Pollen Count Forecast for the Eugene-Springfield area : Trees LOW, Grass HIGH, and weeds LOW. Data from Allergy and Asthma Research Group.

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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:  AM clouds and mostly sunny and just a bit cooler today, and mostly clear tonight, a few AM clouds and warmer Monday then mostly sunny in the afternoon, mostly clear in the evening and  partly cloudy late Monday night highs 79-82 lows 44-48 . A few AM clouds then mostly sunny Tuesday afternoon, partly cloudy Tuesday night high 83 low 50.  A mix of clouds and sun and warmer Wednesday  through Saturday, and partly cloudy at night  highs 82-86 lows near 50. (seasonal averages high 82 low 51)

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Forecast for the Umpqua Basin including Roseburg: AM clouds then sunny today, warmer Monday and Tuesday, clear tonight, clear Monday evening and partly cloudy at night, clear Tuesday night, highs 82-88 lows 53-55 . Mostly sunny and warmer Wednesday through Friday, mostly clear each night, sunny and warmer Saturday highs 82-90 lows 53-55. (seasonal averages high 86 low 55)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy this AM, then mostly sunny this afternoon,  clear this evening,  then cloudy  at night high 64 lows 50-55 . AM clouds then mostly sunny Monday inland and mostly cloudy at the shore, AM cloudy then mostly sunny  high 64 low 53.  Partly cloudy Tuesday night through Thursday night, then mostly cloudy Friday through Saturday lows 50-53 highs 64-67.  (seasonal averages high 67 low 53).

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Forecast for the Cascades of Lane County:  Sunny today,  mostly  clear at  night, sunny Monday, and mostly clear Monday night free air freezing level 14,000 ft.  highs 72-74 lows 42-40 . Mostly sunny Tuesday and mostly clear at night Tuesday,  free air freezing level 14,000 ft. falling to 11,000 ft. Tuesday night high 72 low 40. A mix of clouds and sun Wednesday through Saturday, clear to partly cloudy at night free air freezing level 11,000 ft. Wednesday, 11,000 ft. at night, 12,000 ft. Thursday through Friday night, rising to 13,000 ft. Saturday highs 70-76 lows 40-46.

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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.