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June 2, 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 ) is weakening and will allow fronts to start moving into Oregon. The graphics for days 1-3  show a frontal system bringing rain to the Pacific Northwest today. The graphics for days 3-7    Wednesday through Sunday show a cold front that will be moving through Oregon Wednesday and another front to our northwest Saturday then pushing through the Pacific Northwest next Sunday.

Forecast For The South Willamette Valley Including Eugene-Springfield:

  • Mostly cloudy with a good (50%) chance of AM rain, rain and a bit warmer this afternoon (0.50 in. of rain possible), rain tonight (1.00 in. of rain possible),
  • Cloudy with AM rain likely (70%), a mix of clouds and sun and a bit warmer with a good (50%) chance of showers Monday afternoon (0.10 in. of rain possible), mostly cloudy with a slight (20%) chance  of showers at night,
  • A mix of clouds and sun and a bit warmer with a (40%) chance of showers Tuesday, mostly cloudy with a slight (20%) chance of evening showers, then partly cloudy with a slight (20%) chance of showers late Tuesday night.
  • high 65-72 lows 55-52.
  • Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
  • Sunny and a bit warmer Thursday, mostly clear at night,
  • Sunny and a bit warmer Friday, partly cloudy Friday night,
  • Then mostly sunny and a bit cooler Saturday.
  • highs 77-85 cooling to 83 Saturday lows 50-53.  (seasonal averages high 71 low 46)

Forecast for the Umpqua Valley including Roseburg:

  • Cloudy with a good (50%) chance of AM rain, rain and cooler this afternoon (under 0.10 in. of rain possible), rain tonight (0.50 in. of rain possible),
  • Mostly cloudy with AM showers likely (70%), a slight (20%) chance of showers Monday afternoon (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of showers at night,
  • Partly cloudy and warmer with a slight (20%) chance of showers Tuesday, then just partly cloudy late Tuesday night.
  • highs 70-76 lows 54-52 warming to 56 Tuesday night.
  • Partly cloudy and a bit warmer Wednesday, mostly clear Wednesday night,
  • Mostly sunny and a bit warmer Thursday, mostly clear at night,
  • Sunny and a bit warmer Friday, partly cloudy Friday night,
  • Then partly cloudy and a bit cooler Saturday.
  •  highs 82-92 cooling to 86 Saturday lows 54-58. (seasonal average high 74 low 51)

Forecast for the Oregon Coast including Coos Bay and North Bend:

  • Cloudy with a good (50%) chance of AM rain, rain and a bit warmer this afternoon (0.25 in. of rain possible), rain tonight (1.00 in. of rain possible),
  • Mostly cloudy with a (30%) chance of coastal rain and a bit cooler Monday while inland AM showers likely (70%) and a slight (20%) chance of inland showers and a bit cooler Monday afternoon (under 0.10 in. of rain possible), mostly cloudy at night with a slight (20%) of coastal showers,
  • Mostly cloudy with a slight (20%) chance of AM showers, partly cloudy with a slight (20%) chance of showers and a bit warmer Tuesday afternoon, then mostly cloudy Tuesday night.
  • highs 65-63 warming back to 65 Tuesday lows 54-48 warming to 52 Tuesday night.
  • Partly cloudy and a bit warmer Wednesday, partly cloudy Wednesday night,
  • Mostly sunny and a bit warmer Thursday, mostly clear at night,
  • Mostly sunny Friday, partly cloudy Friday night,
  • Then partly cloudy and a bit cooler Saturday.
  • highs 67-70 cooling to 68 Saturday lows near 50. (seasonal average high 62 low 50)

Forecast for the Northern Oregon Cascades including Willamette Pass:

  • Mostly cloudy with a good (50%) chance of AM rain, rain and a bit cooler this afternoon (1.00 in. of rain possible), rain tonight (2.00 in. of rain possible),
  • Mostly cloudy with AM rain, showers likely (70%) and a bit cooler with Monday afternoon, a good (50%) chance of showers at night,
  • A mix of clouds and sun and warmer with a (40%) chance of showers Tuesday, mostly cloudy with a (40%) chance of evening showers then partly cloudy with a (40%) chance of showers late Tuesday night.,
  • snow level above 8,000 ft. today and tonight, 7,000 ft. Monday, then above 8,000 ft. Monday night through Tuesday night.
  • highs 54-50 warming to 62 Tuesday lows 44-40 Monday night warming to 43 Tuesday night.
  • Sunny and warmer Wednesday, mostly clear Wednesday night,
  • Sunny and a bit warmer Thursday, partly cloudy with a slight (20%) chance of showers at night,
  • Mostly sunny with a slight (20%) chance of showers Friday, partly cloudy with a slight (20%) chance of showers Friday night,
  • Then mostly sunny and a bit cooler with a slight (20% ) chance of showers Saturday.
  • free air freezing level 15,000 ft. Wednesday through Thursday, snow level above 8,000 ft. Thursday night through Saturday.
  • highs 74-80 cooling to 75 Saturday lows 47-52.