Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

81°F

27°C

Humidity 30%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Heat Index80°F (27°C)
Last update 22 Sep 02:52 PM PDT
Extended Forecast for

17 Miles WNW Illinois Valley OR

  • Tonight

    Tonight: Mostly clear, with a low around 50. East northeast wind 10 to 13 mph, with gusts as high as 18 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. East northeast wind 6 to 10 mph becoming northwest in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. North northwest wind around 8 mph becoming east southeast after midnight.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61. Southeast wind 7 to 10 mph becoming southwest in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers.  Low around 46. South southwest wind 11 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before 11am.  Snow level 7800 feet lowering to 6800 feet. Partly sunny, with a high near 50. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. East northeast wind 10 to 13 mph, with gusts as high as 18 mph.
Wednesday
Mostly sunny, with a high near 67. East northeast wind 6 to 10 mph becoming northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54. North northwest wind around 8 mph becoming east southeast after midnight.
Thursday
Mostly sunny, with a high near 61. Southeast wind 7 to 10 mph becoming southwest in the afternoon.
Thursday Night
Showers. Low around 46. South southwest wind 11 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers likely, mainly before 11am. Snow level 7800 feet lowering to 6800 feet. Partly sunny, with a high near 50. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Illinois Valley OR
 42.2°N 123.98°W (Elev. 3786 ft)
12:26 pm PDT Sep 22, 2026
3pm PDT Sep 22, 2026-6pm PDT Sep 29, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database