Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

44°F

7°C

Humidity 98%
Wind Speed NNW 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 11 Dec 09:52 AM PST
Extended Forecast for

9 Miles WNW Illinois Valley OR

  • Today

    Today: Sunny, with a high near 55. South southeast wind around 6 mph becoming calm  in the afternoon.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a steady temperature around 47. East wind 6 to 8 mph.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58. East northeast wind 5 to 8 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. East northeast wind around 9 mph.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. East wind 5 to 8 mph becoming light and variable  in the afternoon.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain, mainly between 10am and 4pm.  Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain Likely

  • Monday

    Monday: Rain.  Cloudy, with a high near 49.

    High: 49 °F

    Rain

Detailed Forecast

Today
Sunny, with a high near 55. South southeast wind around 6 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a steady temperature around 47. East wind 6 to 8 mph.
Friday
Sunny, with a high near 58. East northeast wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 44. East northeast wind around 9 mph.
Saturday
Sunny, with a high near 57. East wind 5 to 8 mph becoming light and variable in the afternoon.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
A 30 percent chance of rain, mainly between 10am and 4pm. Partly sunny, with a high near 50.
Sunday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 44.
Monday
Rain. Cloudy, with a high near 49.
Monday Night
Rain. Cloudy, with a low around 45.
Tuesday
Rain. Cloudy, with a high near 46.
Tuesday Night
Rain. The rain could be heavy at times. Snow level 6000 feet. Cloudy, with a low around 42.
Wednesday
Rain. Snow level 6100 feet. Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Illinois Valley OR
 42.15°N 123.85°W (Elev. 3356 ft)
10:26 am PST Dec 11, 2025
10am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database