July 1, 2024
Note: Weather is a constantly changing phenomenon and weather forecasting is a combination of science, experience, and intuition. The accuracy of any given forecast can chance due to unexpected changes in atmospheric conditions, so there are no guarantees the the actual weather will conform to the projected forecast.
ADVISORIES
- AN EXCESSIVE HEAT WATCH IS IN EFFECT FROM THURSDAY MORNING THROUGH SATURDAY EVENING FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, JACKSON COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY AND WESTERN, CENTRAL AND EASTERN LAKE COUNTY.
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.
THE WEATHER PATTERN:
- An Upper Level High Pressure Ridge (“Arch” shape) strengthens again over us bringing more sunshine and heat. The graphics for days 1-3 show a weak cold front pushing through Tuesday. The graphics for days 3-7 Thursday through Monday show a frontal system sliding into the Pacific Northwest next Sunday.
Forecast For The South Willamette Valley Including Eugene-Springfield:
- Mostly sunny and a bit cooler today, mostly clear tonight,
- Sunny and a bit cooler Tuesday, clear at night,
- Sunny and a bit warmer Wednesday, then clear at night.
- highs 82-80 warming to 84 Wednesday lows 48-52.
- Sunny and a bit warmer Thursday (Independence Day), clear Thursday night,
- Sunny and a bit warmer Friday and Saturday, clear both nights,
- Then sunny and a bit cooler Sunday.
- highs 92-98 cooling to 95 Sunday lows 56-58 cooling to 95 Sunday (seasonal averages high 80 low 50)
Forecast for the Umpqua Valley including Roseburg:
- Some AM clouds, sunny this afternoon, mostly clear tonight,
- Sunny Tuesday, clear at night,
- Sunny and a bit warmer Wednesday, then clear Wednesday night.
- highs 85-84 warming to 87 Wednesday lows 56-53 warming back to 56 Wednesday night.
- Sunny and a bit warmer Thursday (Independence Day), clear Thursday night,
- Sunny and a bit warmer Friday, clear at night,
- Then sunny Saturday and Sunday, clear Saturday night,
- highs 96-101 cooling to 98 Sunday lows near 62. (seasonal average high 82 low 55)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Some AM clouds with patchy coastal fog while areas of inland AM fog, sunny and a bit warmer this afternoon, partly cloudy tonight,
- Mostly sunny and a bit cooler Tuesday, mostly clear at night,
- Mostly sunny and a bit warmer Wednesday, then mostly clear Wednesday night.
- highs 72-70 warming back to 72 Wednesday lows 52-50 warming back to 52 Wednesday night.
- Sunny and a bit warmer Thursday (Independence Day), mostly clear Thursday night,
- Mostly sunny and a bit warmer Friday, mostly clear at night,
- Mostly sunny and a bit cooler Saturday, mostly clear Saturday night,
- Then sunny and a bit cooler Sunday.
- highs 76-78 cooling to 74 Sunday lows 55-53. (seasonal average high 65 low 53)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Sunny and a bit cooler today, mostly clear tonight,
- Then sunny and a bit warmer Tuesday and Wednesday, clear both nights.
- free air freezing level 12,000 ft. rising to 13,000 ft. this afternoon, 14,000 ft. rising to 15,000 ft. tonight, 15,000 ft. Tuesday, then 16,000 ft. Tuesday night through Wednesday night.
- highs 66-76 lows 42-48.
- Sunny and a bit warmer Thursday (Independence Day), clear Thursday night,
- Sunny and a bit warmer Friday, mostly clear at night,
- Sunny and a bit warmer Saturday, clear Saturday night,
- Then sunny and a bit cooler Sunday.
- free air freezing level 16,000 ft. Thursday, then above 16,000 ft. Thursday night through Sunday.
- highs 83-87 cooling to 84 Sunday lows 52-55.