Aug
06.
An Upper Level High Pressure Ridge (“Arch “Shape) takes over producing some hot weather. The graphics for days 1-3 show the weak cold frontal system moving through the Pacific Northwest today. The graphics for days 3-7 Saturday through Wednesday show no frontal systems on the way to Oregon through the period.
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ADVISORIES:
- NONE AT THIS TIME.
HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE RIVER.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 22 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 7 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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Eugene-Springfield Area Pollen count:
GRASS: 5 MODERATE
TREES: 0 ABSENT
WEEDS: 0 LOW
Measured 8.4.25
Data courtesy of Oregon Allergy Associates.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy with a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers tonight,
- AM clouds and sun, sunny and a bit warmer Thursday afternoon, partly cloudy in the evening, mostly clear late Thursday night,
- Sunny and a bit warmer Friday, mostly clear Friday night,
- Sunny and a bit warmer Saturday, partly cloudy in the evening, then mostly clear Saturday night.
- lows 59-50 warming to 58 Saturday night highs 82-89.
- Sunny and a bit warmer (Hot) Sunday, mostly clear Sunday night,
- Sunny and a bit warmer (Hot) Monday, clear at night,
- Sunny and a bit cooler (still very warm) Tuesday, mostly clear Tuesday night,
- Then sunny and a bit cooler, but warm Wednesday.
- highs 97-101 cooling to 90 Wednesday lows 58-62 cooling to 56 Tuesday night. (seasonal averages high 86 low 52).
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Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy with patchy late evening fog continuing overnight, mostly cloudy late tonight,
- Mostly cloudy with patchy AM fog, sunny and a bit warmer Thursday afternoon, partly cloudy in the evening, mostly clear late Thursday night,
- Sunny and a bit warmer Friday, clear at night,
- Mostly sunny and a bit warmer Saturday, then mostly clear Saturday night.
- lows 63-56 warming to 65 Saturday night highs 85-93.
- Sunny and a bit warmer (Hot) Sunday and Monday, clear both nights,
- Sunny and a bit cooler (still Hot)|Tuesday, mostly clear Tuesday night,
- Then mostly sunny and a bit cooler Wednesday.
- highs 99-103 cooling to 94 Wednesday lows 67-63. (seasonal averages high 87 low 58).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with areas of late evening coastal fog continuing overnight and a slight (20%) chance of showers late tonight while patchy evening inland late evening fog continuing through late tonight,
- Mostly cloudy with patchy AM fog, partly cloudy and a bit warmer Thursday afternoon, partly cloudy Thursday night,
- Sunny and a bit warmer Friday, mostly clear at night,
- Sunny Saturday, then partly cloudy Saturday night.
- lows 59-54 warming back to 59 Saturday night highs 73-75.
- Mostly sunny and a bit warmer Sunday, mostly clear Sunday night,
- Sunny and a bit warmer Monday, mostly clear in the evening, partly cloudy at night,
- Some AM clouds, sunny and a bit cooler Tuesday afternoon, partly cloudy Tuesday night,
- Then partly cloudy and a bit cooler Wednesday.
- highs 77-74 lows 59-57.
- (seasonal averages high 67 low 54). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy with a slight (20%) chance of showers tonight,
- AM clouds and sun with a slight (20%) chance of showers, sunny and a bit cooler Thursday afternoon, partly cloudy in the evening, mostly clear late Thursday night,
- Sunny and a bit warmer Friday, mostly clear at night,
- Sunny and a bit warmer Saturday, partly cloudy in the evening, then mostly clear late Saturday night.
- snow level above 8,000 ft. tonight, 8,000 ft. Thursday, free air freezing level 14,000 ft. Thursday night, 14,000 ft. rising to 15,000 ft. Friday afternoon, 16,000 ft. Friday night and Saturday, then above 16,000 ft. Saturday night.
- lows 46-42 warming to 52 Saturday night highs 67-78.
- Sunny and a bit warmer Sunday and Monday, mostly clear both nights,
- Then sunny and a bit cooler Tuesday and Wednesday, mostly clear Tuesday night.
- free air freezing level 16,000 ft. Saturday, above 16,000 ft. Sunday through Monday night, 16,000 ft. Tuesday and Tuesday night, then 15,000 ft. Wednesday.
- highs 85-88 cooling to 80 Wednesday lows 57-55.
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