Jun
17.
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 a frontal systems sliding through the Pacific Northwest by late today. The graphics for days 3-7 Saturday through Wednesday show no frontal systems pushing into the Pacific Northwest 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 20 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 11 in the Good category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 21 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: 79 HIGH
TREES: 0 ABSENT
WEEDS: 0 ABSENT
Measured 6.17.25
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:
- AM clouds with a slight (20%) chance of showers, mostly sunny and cooler this afternoon, partly cloudy tonight,
- Mostly sunny and a bit warmer Thursday (Juneteenth), mostly cloudy at night,
- Mostly cloudy and cooler with showers Friday, then showers likely (70%) with a slight (20%) chance of thunderstorms Friday night.
- highs 73-75 cooling to 63 Friday lows 44-47.
- Mostly cloudy with showers and a bit cooler with slight (20%) chance of thunderstorms Saturday, mostly cloudy with showers likely (70%) Saturday night,
- AM clouds with a (30%) chance of AM rain, a mix of clouds and sun and warmer with a (30%) chance of rain Sunday afternoon, just partly cloudy at night,
- Mostly sunny and warmer Monday, mostly clear Monday night,
- Then sunny and a bit warmer Tuesday.
- highs 62-84 lows 50-48 warming back to 52 Monday night. (seasonal averages high 75 low 48).
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Forecast for the Umpqua Valley including Roseburg:
- AM clouds, with patchy fog, sunny and cooler this afternoon, partly cloudy tonight,
- 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 at night,
- Mostly cloudy with a good (50%) chance of AM showers, showers likely (70%) and cooler with a slight (20%) chance of thunderstorms Friday afternoon, evening showers with a slight (20%) chance of thunderstorms, then showers likely (70%) late Friday night.
- highs 76-64 lows near 52.
- Mostly cloudy with showers Saturday, mostly cloudy with a good (50%) chance of showers late Saturday night,
- Mostly cloudy with a slight (20%) chance of AM showers, just partly cloudy and warmer Sunday afternoon, partly cloudy at night,
- Partly cloudy and a bit warmer Monday, mostly clear Monday night,
- Then mostly sunny and a bit warmer Tuesday.
- highs 64-87 lows 52-56 (seasonal averages high 77 low 53).
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with patchy AM fog and a slight (20%) chance of showers and partly cloudy and a bit warmer this afternoon while AM inland clouds with patchy fog and mostly cloudy and a bit warmer inland this afternoon, mostly clear this evening, partly cloudy tonight,
- Patchy AM fog, partly cloudy and a bit cooler Thursday afternoon (Juneteenth), mostly cloudy with a slight (20%) chance of coastal showers at night while mostly cloudy with a slight (20%) chance of inland showers late at night,
- Mostly cloudy with a good (50%) chance of AM showers, showers and a bit cooler Friday afternoon with a slight (20%) chance of thunderstorms, evening showers, then showers likely (70%) late Friday night.
- highs 66-62 lows 46-48.
- Mostly cloudy with AM showers, showers likely (70%) and a bit warmer Saturday afternoon, mostly cloudy with a good (50%) chance of showers Saturday night,
- Mostly cloudy with a slight (20%) chance of AM showers, just mostly cloudy and a bit warmer Sunday afternoon, partly cloudy at night,
- Partly cloudy and a bit warmer Monday, partly cloudy Monday night,
- Then partly cloudy Tuesday.
- highs 63-70 lows 50-52.
- (seasonal averages high 64 low 51). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit cooler today, partly cloudy tonight,
- Mostly sunny and a bit cooler Thursday (Juneteenth), partly cloudy in the evening, mostly cloudy late at night,
- Mostly cloudy and cooler with showers likely (70%) Friday, then mostly cloudy with rain showers and snow showers and with a slight (20%) chance of thunderstorms Friday night.
- free air freezing level 14,000 ft. today and tonight, 13,000 ft. falling to 1,000 ft. Thursday afternoon, 12,000 ft. falling to 10,000 ft. late Thursday night, snow level 6,000 ft. Friday, then 5,500 ft. Friday night.
- highs 67-50 lows 38-34.
- Mostly cloudy and warmer with rain showers and snow showers and with a slight (20%) chance of thunderstorms Saturday, mostly cloudy with showers Saturday night,
- Mostly cloudy with a good (50%) chance of AM showers, partly cloudy and warmer with a good (50%) chance of showers Sunday afternoon, partly cloudy with a slight (20%) chance of showers at night,
- Sunny and warmer Monday, partly cloudy in the evening, mostly clear late Monday night,
- Then sunny and a bit warmer Tuesday.
- snow level 5,500 ft. Saturday, 5,000 ft. Saturday night, 7,000 ft. Sunday, 8,000 ft. Sunday night, air freezing level 10,000 ft. Monday, then 11,000 ft. Monday night and Tuesday.
- highs 42-73 lows 35-44.
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