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Advisories: NONE AT THIS TIME.
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An upper level high pressure ridge (“Arch” shape) is moving through the Pacific Northwest giving us the Summer heat and sunshine that so many of us have been waiting for. An upper level trough of low pressure will roll in behind the ridge early in the week and with a weak frontal system (shown offshore) will attempt to bring us more clouds and cooler temperatures. A more serious frontal system will push through the Pacific Northwest Thursday night into Friday. Will it bring just clouds or will we get showers too? So far it looks like just the clouds.
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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 sunny and slightly warmer today, mostly clear in the evening, mostly cloudy tonight and Monday and cooler, mostly cloudy Monday evening, partly cloudy Monday night, a mix of clouds and sun Tuesday, then partly cloudy Tuesday night highs 89-74 lows 57-50. A mix of clouds and sun Wednesday, then partly cloudy Wednesday night through Saturday highs 76-81 cooling to 76 Saturday lows near 50. (seasonal averages high 83 low 51)
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The Pollen forecast for the Eugene/Springfield Area is for weeds to be absent, trees to be low, and Grass to be low. The grass pollen season is over for the most part. (Provided by Allergy and Asthma Research Group)
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Forecast for the Umpqua Basin including Roseburg: Sunny this AM, partly cloudy this afternoon, mostly clear in the evening, then mostly cloudy late tonight through Tuesday night highs 90-77 lows 59-53. Partly cloudy Wednesday through Saturday highs 78-89 cooling to near 85 Saturday lows 52-58. (seasonal averages high 87 low 55)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with patchy fog this AM, partly cloudy this afternoon, mostly cloudy with patchy coastal fog late tonight and early Monday AM and a slight (20%) chance of AM rain, just mostly cloudy in the afternoon and Monday night with patchy coastal fog and drizzle late night and Tuesday AM, then just mostly cloudy Tuesday afternoon and night highs 69-65 lows 57-53. Mostly cloudy Wednesday through Thursday AM, then partly cloudy Thursday afternoon through Saturday highs near 66 lows 52-54. (seasonal averages high 67 low 53).
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Forecast for the Cascades of Lane County: Mostly sunny with a slight (20%) chance of thunderstorms in the afternoon and evening (mainly South of Sisters), mostly cloudy late tonight and Monday AM, a mix of clouds and sun and cooler Monday afternoon with a slight (20%) chance of showers, mostly cloudy Monday night with a slight (20%) chance of showers, a mix of clouds and sun Tuesday with a slight (20%) chance of showers, then partly cloudy with a slight (20%) chance of showers Tuesday night free air freezing level 14,000 ft. today and tonight, then a snow level above 8,000 ft. Monday through Tuesday night highs 78-60 lows 48-40. Partly cloudy with a slight (20%) chance of showers Wednesday, just partly cloudy Wednesday night through Saturday AM, then mostly sunny Saturday afternoon snow level above 8,000 ft. Wednesday, then rising to a free air freezing level of 13,000 ft. Wednesday night, 15,000 ft. Thursday through Friday, then 14,000 ft. Friday night and Saturday highs 60-70 cooling to near 65 Saturday lows 42-46.
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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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