June 28, 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
- 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.
THE WEATHER PATTERN:
- An Upper Level High Pressure Ridge (“Arch” shape) strengthens again bringing more sunshine. The graphics for days 1-3 show no frontal systems moving through Oregon, but a weak front will be offshore Sunday. The graphics for days 3-7 Monday through Friday show a frontal system will be moving through Oregon next Tuesday and another will be offshore next Friday.
Forecast For The South Willamette Valley Including Eugene-Springfield:
- Mostly clear tonight,
- A mix of clouds and sun Saturday, partly cloudy in the evening, clear late Saturday night,
- A mix of clouds and sun Sunday, mostly clear at night,
- Sunny Monday, then clear Monday night.
- lows 52-54 cooling to 50 Monday night highs near 82.
- Sunny Tuesday, clear Tuesday night.
- Sunny and a bit warmer Wednesday and Thursday (Independence Day), clear both nights,
- Then sunny and a bit warmer Friday.
- highs 82-94 lows 50-54. (seasonal averages high 78 low 50)
Forecast for the Umpqua Valley including Roseburg:
- Mostly clear tonight,
- Partly cloudy Saturday, partly cloudy with patchy fog Saturday night,
- AM clouds, sunny and a bit warmer Sunday afternoon, mostly clear at night,
- Some AM clouds, sunny Monday, then clear Monday night.
- lows 56-59 cooling to 55 Monday night highs near 85.
- Sunny Tuesday, clear Tuesday night,
- Sunny and a bit warmer Wednesday, clear Wednesday night,
- Sunny and a bit warmer Thursday (Independence Day), clear Thursday night,
- Then sunny and a bit warmer Friday.
- highs 85-98 lows 55-60. (seasonal average high 81 low 55)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Mostly clear this evening, mostly cloudy with patchy fog late tonight,
- Patchy AM and late night fog, mostly cloudy start, partly cloudy and a bit warmer Saturday afternoon and evening, mostly cloudy late Saturday night,
- AM clouds with areas of fog, sunny Sunday afternoon, mostly clear in the evening, partly cloudy late at night,
- Some AM clouds, sunny and a bit cooler Monday, then mostly clear Monday night.
- lows 52-54 cooling to 50 Monday night highs 72-70.
- Mostly sunny Tuesday, mostly clear Tuesday night,
- Mostly sunny and a bit warmer Wednesday, mostly clear at night,
- Sunny and a bit warmer Thursday (Independence Day), mostly clear Thursday night,
- Then mostly sunny and a bit warmer Friday.
- highs 70-75 lows 49-52. (seasonal average high 65 low 52)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Mostly clear tonight,
- Mostly sunny and a bit cooler Saturday, partly cloudy Saturday night,
- Mostly sunny Sunday, mostly clear at night,
- Sunny and a bit warmer Monday, then clear Monday night.
- free air freezing level 13,000 ft. tonight, 12,000 ft. Saturday through Monday, then 15,000 ft. Monday night.
- lows 44-42 highs 66-68.
- Sunny and a bit warmer Tuesday and Wednesday, clear both nights,
- Sunny and a bit warmer Thursday (Independence Day), clear Thursday night,
- Then sunny and a bit warmer Friday.
- free air freezing level 15,000 ft. Tuesday and Tuesday night, 16,000 ft. Wednesday and Wednesday night, then above 16,000 ft. Thursday through Friday.
- highs 72-85 lows 42-46.