Jul
04.
An Upper Level Low Pressure Trough (“U”shape) moving slowly eastward and continues sending cool marine air our way. Upper level High Pressure takes over to start heating us up. The graphics for days 1-3 show no frontal systems moving into or through the Pacific Northwest. The graphics for days 3-7 Tuesday through Saturday show no frontal systems pushing into the Pacific Northwest during 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 21 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 12 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 22 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: 101 HIGH
TREES: 4 LOW
WEEDS: 0 LOW
Measured 7.3.25
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:
- Sunny and a bit warmer today, clear tonight,
- Sunny and a bit warmer Sunday, clear at night,
- Sunny and a bit warmer Monday, then mostly clear Monday night.
- highs 82-92 lows 49-56.
- Sunny Tuesday, mostly clear Tuesday night,
- Sunny and a bit cooler Wednesday, mostly clear at night,
- Then sunny and a bit warmer Thursday and Friday, clear Thursday night.
- highs 92-86 warming back to 92 Friday lows 56-58. (seasonal averages high 81 low 51).
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Forecast for the Umpqua Valley including Roseburg:
- Sunny and a bit warmer today, clear tonight,
- Sunny and a bit warmer Sunday, clear at night,
- Sunny and a bit warmer Monday, then mostly clear Monday night.
- highs 83-78 warming back to 83 Saturday lows 55-62. .
- Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Mostly sunny and a bit warmer Wednesday, mostly clear at night,
- Mostly sunny Thursday, mostly clear Thursday night,
- The sunny Friday.
- highs 87-95 lows 58-62 (seasonal averages high 83 low 56).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Some AM clouds, sunny and a bit warmer this afternoon, mostly clear with patchy inland fog late tonight,
- Sunny Sunday, mostly clear in the evening, partly cloudy at night,
- Some AM clouds, sunny and a bit warmer Monday afternoon, then mostly clear with patchy fog late Monday night.
- highs 68-72 lows 49-52.
- Partly cloudy Tuesday and in the evening, mostly cloudy with patchy fog late Tuesday night,
- Patchy AM and late night fog, mostly cloudy Wednesday and at night,
- Some AM clouds with patchy fog, sunny Thursday afternoon, partly cloudy Thursday n ight,
- Then partly cloudy Friday.
- highs 69-72 lows near 53.
- (seasonal averages high 65 low 53). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit warmer today, mostly clear tonight,
- Sunny and a bit warmer Sunday, clear at night,
- Sunny and a bit warmer Monday, partly cloudy in the evening, clear late Monday night.
- snow level free air freezing level 12,000 ft. today, 13,000 ft. rising to 14,000 ft. tonight, 14,000 ft. Sunday, 14,000 ft. rising to 15,000 ft. late Sunday night, then 15,000 ft, Monday and Monday night, 15,000 ft.
- highs 70-84 lows 46-54.
- Sunny and a bit cooler Tuesday, partly cloudy in the evening, mostly clear Tuesday night,
- Sunny and a bit cooler Wednesday, partly cloudy in the evening, mostly clear late at night,
- Then sunny and a bit warmer Thursday and Friday, clear Thursday night.
- highs 75-85 cooling to 83 Wednesday lows 48-54.
- free air freezing level 15,000 ft. Tuesday, 13,000 ft Wednesday, 15,000 ft. Wednesday night, then 16,000 ft. Thursday through Friday.
- highs 82-75 warming to 85 Friday lows 50-48 warming to 52 Thursday night.
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