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Advisories: NONE AT THIS TIME.
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An upper level high pressure ridge (“Arch” shape) is moving into 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: Clear tonight, mostly sunny and slightly warmer Sunday, mostly clear in the evening, mostly cloudy Sunday night and Monday and cooler, mostly cloudy Monday evening, partly cloudy Monday night, a mix of clouds and sun Tuesday, then partly cloudy Tuesday night lows 52-57 cooling to near 50 Tuesday night highs 89-74. 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: Mostly clear tonight, sunny Sunday AM, partly cloudy Sunday afternoon, mostly clear in the evening, then mostly cloudy late Sunday night through Tuesday night lows 59-53 highs 79-89 . 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 clear this evening, mostly cloudy with patchy fog late tonight and Sunday AM, partly cloudy Sunday afternoon, mostly cloudy with patchy coastal fog late Sunday night 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 late night and Tuesday AM, then just mostly cloudy Tuesday afternoon and night lows near 55 highs 65-68. Mostly cloudy Wednesday through Thursday, then partly cloudy Thursday night through Saturday highs near 66 lows 52-56. (seasonal averages high 67 low 53).
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Forecast for the Cascades of Lane County: Clear tonight, mostly sunny and warmer Sunday with a slight (20%) chance of thunderstorms in the afternoon and evening (mainly South of Waldo Lake), mostly cloudy late Sunday night and Monday AM, partly cloudy and cooler with a slight (20%) chance of showers Monday afternoon, partly cloudy with a slight (20%) chance of showers Monday night, then partly cloudy with a slight (20%) chance of showers Tuesday and Tuesday night free air freezing level 15,000 ft. tonight, 14,000 ft. Sunday and Sunday night, then a snow level above 8,000 ft. Monday through Tuesday lows 50-40 highs 80-60. 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, 14,000 ft. Thursday and Thursday night, 15,000 ft. 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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