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The good news is that a high pressure ridge (“Arch” shape) is moving in bringing us sunshine and much warmer temperatures for the long holiday weekend. A weak disturbance Saturday night and Sunday will bring clouds and no precipitation to Oregon, but that will cool down the temperatures more than I originally thought. More sunshine and warmer for the 4th.
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Advisories: NONE AT THIS TIME.
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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 cloudy this evening, partly cloudy with patchy fog late tonight and Friday AM, also a mix of clouds and sun Friday AM, mostly sunny and warmer in the afternoon, mostly clear Friday night, mostly sunny and warmer Saturday, mostly clear in the evening, partly cloudy Saturday night, mostly cloudy Sunday and in the evening, then partly cloudy Sunday night lows 44-52 cooling to 45 Sunday night highs 79-82 cooling to near 74 Sunday. Partly cloudy with patchy fog to start the day, mostly sunny and slightly warmer Monday afternoon (Independence Day), mostly clear Monday night, then mostly sunny days and mostly clear nights Tuesday through Thursday highs 77-86 cooling back to 78 Thursday lows 46-52. (seasonal averages high 78 low 49)
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The Pollen forecast for the Eugene/Springfield Area is for weeds and trees to be low, and Grass to be moderate. (Provided by Allergy and Asthma Research Group)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy this evening, partly cloudy tonight, mostly cloudy Friday AM, sunny Friday afternoon, mostly clear Friday night, sunny Saturday and Sunday with mostly clear nights lows 48-57 highs 80-85 cooling to 78 Sunday. Mostly sunny Monday (Independence Day), mostly clear Monday night, then mostly sunny again Tuesday through Thursday with mostly clear nights highs 83-89 cooling to 86 Thursday lows near 55. (seasonal averages high 82 low 53)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy this evening, partly cloudy tonight with patchy coastal fog late at night and Friday AM, sunny Friday afternoon, mostly clear Friday night, sunny Saturday, mostly clear Saturday evening, then partly cloudy Saturday night through Sunday night lows 49-54 highs 63-66 cooling to 63 Saturday. Mostly sunny Monday (Independence Day), mostly clear at night, then mostly sunny days and mostly clear nights Tuesday through Thursday highs 67-63 warming to 65 Wednesday lows near 52. (seasonal averages high 65 low 52).
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Forecast for the Cascades of Lane County: Mostly cloudy (a slight 20% chance of showers North of Mt. Jefferson), this evening, partly cloudy late tonight, mostly sunny and warmer Friday and Saturday, mostly clear Friday night, partly cloudy Saturday night, mostly cloudy with some sun breaks Sunday, then clearing out Sunday night free air freezing level 12,000 ft. tonight (snow level 8,000 ft. North), free air freezing level rising to 13,000 ft. Friday afternoon, rising to 14,000 ft. Friday night and Saturday, falling to 12,000 ft. Saturday night, then rising back to 13,000 ft. Sunday night lows 35-45 highs 67-74 cooling to near 65 Sunday. Mostly sunny Monday (Independence Day), mostly clear Monday night, then mostly sunny again Tuesday through Thursday with mostly clear nights free air freezing level 13,000 ft. Monday, rising to 15,000 ft. Monday night through Tuesday night, then rising to 14,000 ft. Wednesday through Thursday highs 70-79 cooling to near 65 Thursday lows 43-50 cooling to 42 Wednesday 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.
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Get your local Eugene /Springfield news on-line at EugeneDailyNews.com.
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