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Widespread Showers and Thunderstorms in Southern California and the Southern Plains into the Mississippi Valley

Isolated strong to severe thunderstorms and widespread heavy rainfall are possible across the southern Plains into Arkansas. Widespread showers with a slight chance of thunderstorms are possible across southern California. Urban flooding, rock and mudslides as well as minor debris flows near burn scars are possible. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

41°F

5°C

Humidity 96%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 20 Nov 05:52 PM PST
Extended Forecast for

Illinois Valley OR

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 31. North wind 3 to 5 mph.

    Low: 31 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 55. North northeast wind 3 to 6 mph.

    High: 55 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 32. North wind 3 to 5 mph.

    Low: 32 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 61. Light north northeast wind.

    High: 61 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Light south southeast wind.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of rain after 4pm. Partly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny
    then Chance
    Rain

  • Sunday Night

    Sunday Night: A chance of rain before 10pm, then a slight chance of showers after 10pm. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.

    Low: 36 °F

    Chance Rain

  • Monday

    Monday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 31. North wind 3 to 5 mph.
Friday
Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 55. North northeast wind 3 to 6 mph.
Friday Night
Patchy fog after 10pm. Otherwise, increasing clouds, with a low around 32. North wind 3 to 5 mph.
Saturday
Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 61. Light north northeast wind.
Saturday Night
Mostly clear, with a low around 34. Light south southeast wind.
Sunday
A 30 percent chance of rain after 4pm. Partly sunny, with a high near 56.
Sunday Night
A chance of rain before 10pm, then a slight chance of showers after 10pm. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A chance of rain. Mostly cloudy, with a high near 57.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 40.
Thanksgiving Day
A slight chance of rain. Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Illinois Valley OR
 42.09°N 123.68°W (Elev. 1394 ft)
Last Update:
3:40 pm PST Nov 20, 2025
Forecast Valid:
6pm PST Nov 20, 2025-6pm PST Nov 27, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation