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 today. A weak cold front (position shown is where it will be Saturday) 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: Sunny and a bit warmer today, mostly clear at night, mostly sunny but cooler Friday, and mostly clear Friday night highs 88-82 lows 47-50. AM clouds then mostly sunny Saturday and Sunday, mostly clear Saturday night and Sunday night highs 80-78 lows near 50. AM clouds then a mix of clouds and sun and warmer Monday through Wednesday, mostly cloudy nights and early mornings highs 74-79 lows near 50. (seasonal averages high 82 low 51)
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Forecast for the Umpqua Basin including Roseburg: Sunny today and cooler Friday, clear tonight with patchy late night and early AM fog low 56 highs 97-88. Partly cloudy Friday night and Saturday night, mostly cloudy Sunday night, mostly sunny Saturday, partly cloudy and cooler Sunday lows 56-53 highs 86-82. AM clouds, sunny Monday, mostly clear at night and AM clouds with a slight (20%) chance of drizzle, then mostly sunny Tuesday and Wednesday, mostly clear nights highs 80-84 lows 52-56. (seasonal averages high 86 low 55)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Patchy fog both inland and at the shore this morning, then sunny this afternoon, becoming mostly cloudy with fog tonight high 62 low 49. 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. Mostly cloudy Saturday night through Sunday night, mostly cloudy with patchy areas of drizzle or light rain Monday through Tuesday lows 52-53 highs 64-66. Partly cloudy Tuesday night and Wednesday low near 50 high 64. (seasonal averages high 67 low 53).
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Forecast for the Cascades of Lane County: Mostly sunny and warmer today and cooler Friday, mostly clear tonight and Friday night free air freezing level 15,000 ft. falling to 14,000 ft. Friday night highs 83-76 lows 50-44 . 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 lows 42-45 . Mostly sunny Monday, a mix of clouds and sun Tuesday and 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.