Jun
15.
An Upper Level Low Pressure Trough (“U” shape) over the Eastern Pacific along with surface High Pressure keep the onshore airflow over us holding the temperatures down to normal levels. The graphics for days 1-3 show no frontal systems over or approaching the Pacific Northwest, but one well offshore Tuesday. The graphics for days 3-7 Wednesday through Sunday show a frontal system pushing into the Pacific Northwest Wednesday.
_______________
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.
_______________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 41 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 18 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 40 in the Good category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
_______________
Eugene-Springfield Area Pollen count:
GRASS: 131 HIGH
TREES: 3 LOW
WEEDS: 0 ABSENT
Measured 6.13.25
Data courtesy of Oregon Allergy Associates.
_______________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy tonight,
- AM clouds and sun, sunny and slightly cooler Monday afternoon, mostly clear Monday night,
- Sunny and a bit warmer Tuesday, mostly clear at night,
- A mix of clouds and sun and a bit cooler Wednesday, then mostly clear Wednesday night.
- lows 44-52 highs 75-79 cooling to 77 Wednesday.
- Mostly sunny and a bit cooler Thursday (Juneteenth), partly cloudy Thursday night,
- Mostly cloudy and a bit cooler with showers likely (70%) Friday, mostly cloudy with showers likely (70%) at night,
- Mostly cloudy with a good (50%) chance of AM showers, a mix of clouds and sun and a bit cooler with a good (50%) chance of showers Saturday afternoon, partly cloudy with a slight (20%) chance showers Saturday night,
- Then mostly sunny and a bit warmer Monday.
- highs 75-67 warming to 75 Sunday lows 48-47. (seasonal averages high 74 low 48).
________________
Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy tonight,
- AM clouds, sunny and a bit cooler Monday, mostly clear Monday night,
- Sunny and a bit warmer Tuesday, mostly clear at night,
- Mostly cloudy start, sunny and a bit cooler Wednesday afternoon, then mostly clear Wednesday night,
- lows 52-49 warming to 55 Tuesday night cooling to 52 Wednesday night highs 77-83 cooling back to 79 Wednesday.
- Mostly sunny and a bit cooler Thursday (Juneteenth), mostly clear in the evening, partly cloudy with a slight (20%) chance of showers Thursday night,
- Mostly cloudy and a bit cooler with a (30%) chance of showers Friday, a good (50%) chance of showers at night,
- Partly cloudy and a bit warmer Saturday, partly cloudy Saturday night,
- Then partly cloudy and warmer Sunday.
- highs 78-68 warming to 79 Sunday lows near 52 (seasonal averages high 76 low 52).
_______________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy this evening, mostly cloudy tonight,
- AM clouds, sunny and a bit cooler Monday afternoon, mostly clear with patchy coastal fog late Monday night,
- Sunny and a bit warmer Tuesday, mostly clear in the evening, mostly cloudy with patchy fog late at night,
- Patchy AM fog, mostly cloudy and a bit cooler Wednesday afternoon, mostly clear in the evening, then partly cloudy Wednesday night.
- lows near 48 highs 67-70 cooling to 66 Wednesday.
- Some AM clouds, sunny and a bit cooler Thursday afternoon (Juneteenth), partly cloudy in the evening, mostly cloudy with a slight (20%) chance of showers Thursday night,
- Mostly cloudy with a good (50%) chance of showers Friday, evening showers likely (70%), mostly cloudy with patchy fog and a good (50%) chance of showers late at night,
- AM clouds with patchy fog, partly cloudy with a good (50%) chance of showers and a bit warmer Saturday afternoon, .partly cloudy with patchy fog late Saturday night,
- Patchy AM fog, then partly cloudy Sunday afternoon.
- highs 66-63 warming to 67 Sunday lows near 48.
- (seasonal averages high 64 low 51). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy this evening, partly cloudy late tonight,
- Mostly sunny and a bit warmer Monday, mostly clear Monday night,
- Sunny and a bit warmer Tuesday, clear at night,
- Sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
- free air freezing level 12,000 ft. tonight and Monday, 12,000 ft. rising to 13,000 ft. Monday night, 13,000 ft. Tuesday, 13,000 ft. rising to 14,000 ft. Tuesday night, then 14,000 ft. Wednesday and Wednesday night.
- lows 43-39 warming to 42 Tuesday night cooling to 40 Wednesday night highs 65-70.
- Sunny and a bit cooler Thursday (Juneteenth), mostly clear in the evening, mostly cloudy late Thursday night,
- A mix of clouds and sun and cooler with a (50%) chance of showers Friday, mostly cloudy with rain and snow showers likely (70%) at night,
- Mostly cloudy with AM showers likely (70%), partly cloudy and a bit cooler with showers likely (70%) Saturday afternoon, mostly cloudy with a (40%) chance of showers Saturday night,
- Then mostly sunny and warmer Sunday.
- free air freezing level 13,000 ft. Thursday, 12,000 ft. Thursday night, snow level 6,000 ft. Friday, 5.500 ft. Friday nigh and Saturday, 6,500 ft. Saturday night, then free air freezing level 9,000 ft. Sunday.
- highs 67-48 warming to 64 Sunday lows 38-35 warming to 37 Saturday night.
______