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An upper level low (See the concentric circles in the Gulf of Alaska) will be bringing in more clouds and cooler temperatures again beginning early in the week. A weak cold front has already pushed into Oregon ushering in the change.
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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 VERY 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: Becoming cloudy overnight tonight, mostly cloudy Monday AM with a slight (20%) chance of showers, a mix of clouds and sun and cooler in the afternoon, and mostly cloudy with a slight (20%) chance of showers Monday night lows 50-48 high 75. Mostly cloudy Tuesday morning, a mix of clouds and sun and a bit cooler Tuesday afternoon high 72 . Partly cloudy Tuesday evening, mostly cloudy Tuesday night and Wednesday AM, then back to a mix of clouds and sun Wednesday afternoon low 46-52 highs 72-69. The pattern repeats partly cloudy Wednesday evening, mostly cloudy Wednesday night and Thursday AM, then a mix of clouds and sun Thursday afternoon through Sunday the 4th of July lows 46-52 highs 72-76.
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Forecast for the Umpqua Basin including Roseburg: Becoming mostly cloudy tonight and Monday AM, then partly cloudy and cooler Monday afternoon and evening, mostly cloudy at night and Tuesday lows 54-50 highs 82-72. Mostly cloudy Tuesday night through Wednesday night lows 46-50 high 73. Partly cloudy Thursday,Thursday night, and Friday AM, then sunny Friday afternoon, and partly cloudy Friday night through Sunday July 4th highs 75-80 then near 75 Saturday and Sunday lows near 50-52.
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy tonight along the shore and becoming cloudy inland with a slight (20%) chance of patchy drizzle late at night and early Monday morning, then just mostly cloudy Monday afternoon and Monday night with a slight (20%) chance of showers late at night at the shore lows 53-47 high 62. Mostly cloudy Tuesday through Thursday, then partly cloudy Thursday night through Sunday July 4th highs 60-64 lows 48-53.
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Forecast for the Cascades of Lane County: Partly cloudy tonight and a mix of clouds and sun Monday, then partly cloudy Monday evening and mostly cloudy at night with a slight (20%) chance of showers night free air freezing level 12,000 ft. tonight lowering to 11,000 ft. Monday and a snow level above 8,000 ft. Monday night lows 43-39 high 67. A mix of clouds and sun and cooler Tuesday, becoming partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers late Tuesday night, free air freezing level 10,000 ft. falling to a snow level of 8,000 ft. Tuesday night high 60 low 35. AM clouds, then a mix of clouds and sun with a slight (20%) chance of showers and cooler Wednesday, partly cloudy in the evening then mostly cloudy with a slight (20%) chance of showers late Wednesday night, AM clouds Thursday, and a mix of clouds and sun and warmer Thursday afternoon with a slight (20%) chance of showers, snow level 6,500 ft. Wednesday rising to 7,000 ft. at night and 8,000 ft. Thursday highs 56-66 low 38. Partly cloudy with a slight (20%) chance of showers Thursday night through Sunday July 4th snow level 8,000 ft. lows 37-42 highs 60-66.
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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.