An Upper Level High Pressure Ridge (“Arch” Shape) over the desert Southwest continues the warming trend. The graphics for days 1-3 show no frontal systems moving through the Pacific Northwest. The graphics for days 3-7 Wednesday through Sunday show a frontal system pushing into the Pacific Northwest Thursday and another front next Sunday.
_______________
ADVISORIES:
- A HEAT ADVISORY IS IN EFFECT FROM 9 AM TODAY UNTIL 9 PM TUESDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON
- A HEAT ADVISORY IS IN EFFECT FROM 9 AM TODAY UNTIL 9 PM TUESDAY FOR THE LOWER COLUMBIA BASIN OF OREGON.
- A HEAT ADVISORY IS IN EFFECT FROM 9 AM TODAY UNTIL 9 PM TUESDAY FOR THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON.
- A HEAT ADVISORY IS IN EFFECT FROM 11 AM MDT UNTIL 8 PM MDT TUESDAY FOR THE OREGON LOWER TREASURE VALLEY.
HEALTH ADVISORIES:
- A RECREATION HEALTH ADVISORY HAS BEEN ISSUED FOR LAKE BILLY CHINOOK, PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES SUCH AS WATER SKIING OR POWER BOATING IN AREAS WHERE BLOOMS ARE PRESENT AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER, OREGON HEALTH OFFICIALS SAID. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, THOUGH THOSE WITH SKIN SENSITIVITIES MAY DEVELOP A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGED PEOPLE TO VISIT LAKE BILLY CHINOOK FOR ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BIKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY, WHICH COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
- 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 43 in the Good category measuring Particulate Matter.
Oakridge: The Air Quality Index is 17 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: 25 HIGH
TREES: 0 ABSENT
WEEDS: 0 ABSENT
Measured 6.27.25
Data courtesy of Oregon Allergy Associates.
_______________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Sunny and a bit warmer today, partly cloudy tonight,
- Then sunny and a bit cooler Tuesday and Wednesday, mostly clear both nights.
- highs 95-84 lows 58-52.
- Mostly sunny and a bit cooler Thursday, mostly clear Thursday night,
- Mostly sunny Friday (Independence Day), mostly clear at night,
- Sunny and a bit warmer Saturday, mostly clear Saturday night,
- Then sunny and a bit cooler Sunday.
- highs 82-84 cooling back to 82 Sunday lows near 52. (seasonal averages high 79 low 50).
________________
Forecast for the Umpqua Valley including Roseburg:
- Sunny with a slight (20%) chance of thunderstorms and a bit warmer today, mostly cloudy with a slight (20%) chance of thunderstorm tonight,
- Some AM clouds, sunny and a bit cooler Tuesday afternoon, mostly clear in the evening, partly cloudy late Tuesday night,
- Mostly sunny and a bit cooler Wednesday, then mostly clear Wednesday night.
- highs 95-86 lows 63-56. .
- Mostly sunny and a bit cooler Thursday, mostly clear Thursday night,
- Mostly sunny and a bit warmer Friday (Independence Day), mostly clear at night,
- Mostly sunny and a bit warmer Saturday, mostly clear at night,
- Then mostly sunny Sunday.
- highs 83-85 lows 55-57 (seasonal averages high 81 low 55).
_______________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Some AM clouds with a slight (20%) chance of inland thunderstorms, sunny and warmer with a slight (20%) chance of afternoon inland thunderstorms, mostly cloudy with a slight (20%) chance of inland evening thunderstorms, just mostly cloudy late tonight,
- AM clouds, sunny and a bit cooler Tuesday afternoon, partly cloudy in the evening, mostly cloudy late at night,
- Then partly cloudy Wednesday and Wednesday night.
- highs 72-69 lows 53-52.
- Partly cloudy Thursday and Thursday night,
- Partly cloudy Friday (Independence Day) and at night,
- Partly cloudy and a bit warmer Saturday, partly cloudy Saturday night,
- Then partly cloudy Sunday.
- highs 69-70 lows 50-52.
- (seasonal averages high 65 low 53). _______________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and warmer today, mostly cloudy with a slight (20%) chance of thunderstorms tonight,
- Mostly sunny and a bit cooler with a slight (20%) chance of thunderstorms Tuesday afternoon, partly cloudy with a (40%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late at night,
- Mostly sunny and a bit cooler Wednesday, partly cloudy Wednesday night.
- free air freezing level 15,000 ft. today, snow level above 8,000 ft. Monday night through Wednesday , then free air freezing level 14,000 ft. Wednesday night.
- highs 84-87 cooling to 82 Tuesday lows 56-45.
- Sunny and a bit cooler Thursday, mostly clear Thursday night,
- Sunny Friday (Independence Day), mostly clear at night,
- Sunny and a bit warmer Saturday, mostly clear in the evening, partly cloudy late Saturday night,
- Then sunny and a bit cooler Sunday.
- free air freezing level 13,000 ft. Thursday through Friday, then 14,000 ft. Friday night through Sunday.
- highs 72-70 warming to 73 Friday cooling to 72 Saturday lows near 45.
______