The combination of an upper level trough of low pressure (the “U” shaped dip in the yellow line) is moving away to be replaced by high pressure that will change the airflow to offshore warming us back up Thursday. A weak cold front will cool things off a bit Friday, then back up again Saturday, down Sunday and back up early next week, but it should stay dry.
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Advisories: NON 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: Mostly clear tonight, mostly sunny and a bit warmer Thursday, mostly clear at night, mostly sunny but cooler Friday, and mostly clear Friday night lows 51-47 highs 88-82. Mostly sunny Saturday and Sunday, mostly clear Saturday night and Sunday evening, then mostly cloudy Sunday night highs 82-79 lows near 50. AM clouds then a mix of clouds and sun and warmer Monday through Wednesday, mostly cloudy nights highs 74-79 lows near 50. (seasonal averages high 82 low 51)
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Forecast for the Umpqua Basin including Roseburg: Clear tonight and Thursday night, sunny Thursday and cooler Friday, lows 56 highs 97-86. Mostly clear Friday night through Sunday night, mostly sunny Saturday and cooler Sunday lows 56-53 highs 86-82. Sunny Monday, mostly clear at night and mostly sunny Tuesday with a slight (20%) chance of light rain and drizzle through Tuesday, and mostly clear nights highs 80-85 lows 52-56. (seasonal averages high 85 low 55)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy tonight with patchy coastal fog with inland fog late tonight and both inland and at the shore Thursday morning, then sunny Thursday afternoon, becoming mostly cloudy with fog Thursday night lows 53-49 high 62. Clouds and fog Friday morning, mostly sunny Friday afternoon, partly cloudy Friday night and Saturday morning, then mostly sunny Saturday high 65-64 lows near 50. Partly cloudy with a slight (20%) chance of light rain and drizzle Sunday night through Tuesday lows 52-54 highs 66-63. Partly cloudy Tuesday night and Wednesday lows near 50 high 64. (seasonal averages high 67 low 53).
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Forecast for the Cascades of Lane County: Mostly clear tonight, Thursday night, and Friday night, mostly sunny and warmer Thursday and cooler Friday free air freezing level 15,000 ft. falling to 14,000 ft. Friday night lows 53-44 highs 83-77. Mostly sunny Saturday and Sunday, mostly clear Saturday night and Sunday night free air freezing level 14,000 ft. falling to 13,000 ft Sunday night highs 75-70 low. A mix of clouds and sun Monday through Wednesday free air freezing level 13,000 ft. falling to 12,000 ft. Monday night through Wednesday highs 69 Monday, 63 Tuesday, 70 Wednesday, lows 45-42.
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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.