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An upper level trough of low pressure (See the “U” shaped yellow line) is moving away from Oregon which will means the onshore flow that brought more clouds and cooler temperatures is leaving. It will be warming a bit today because an upper air ridge of high pressure (the “arch” shaped portion of the yellow lines over the Pacific) will take over. This also means good weather for the “Butte to Butte” this morning and better picnic weather for this afternoon. It looks like the only chance of getting wet will be at the lake or pool, or possibly in the mountains. Some locations in the valleys could see 90 degrees or above before the end of next week, then it will cool off a bit. So typical that the weather gets sunnier and warmer AFTER the 4th of July holiday weekend.
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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: A mix of clouds and sun and warmer today (Independence Day), partly cloudy tonight, a mix of clouds and sun and a bit cooler Monday, and mostly clear at night highs 78-75 lows 52-50. A mix of clouds and sun and warmer Tuesday through Thursday and a bit cooler Friday and much cooler Saturday, and mostly clear at night highs 88-92 and cooling to 87 Friday and 86 Saturday lows 55-58. (seasonal averages high 80 low 50)
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Forecast for the Umpqua Basin including Roseburg: Sunny today (Independence Day), and mostly clear in the evening, and mostly cloudy at night highs 83-80 low 55. AM clouds, then sunny Monday afternoon and mostly clear Monday night high 82 low 55. Mostly sunny Tuesday through Wednesday, AM sun Thursday, then partly cloudy with a slight (20$%) chance of afternoon and evening thunderstorms, and mostly clear at night highs 90-92 lows near 60. Partly cloudy Friday with a slight chance of afternoon and evening thunderstorms, sunny Saturday AM with a slight (20%) chance of thunderstorms highs 90-88 low 58. (seasonal averages high 83 low 54)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Sunny today (Independence Day), partly cloudy this evening and mostly cloudy tonight with patchy inland fog late at night high 66 low 54. AM clouds, then sunny and cooler Monday, mostly clear and breezy (winds North 20-25 mph dropping to 10-20 mph late at night) Monday night, then mostly sunny and warmer Tuesday through Saturday and mostly clear at night highs 65 Monday, 72 Tuesday, 69 Wednesday, cooling to 65 by Saturday lows from 54 to 57 (seasonal averages high 66 low 52).
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Forecast for the Cascades of Lane County: A mix of clouds and sun today (Independence Day) and partly cloudy tonight with a slight (20%) chance of showers free air freezing level 12,000 ft. today and a snow level 8,000 ft. tonight high 68 low 43. Mostly sunny and warmer Monday through Wednesday, and a bit cooler Thursday through Saturday, mostly clear skies at night free air freezing level 13,000 ft. Monday through Tuesday, 14,000 ft. Tuesday night and Wednesday, and back down to 13,000 ft. Wednesday night through Friday highs 73-85 cooling to near 80 Thursday through Saturday lows 38-58 cooling to near 55 Thursday night and Friday night.
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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.