Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

93°F

34°C

Humidity 17%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index89°F (32°C)
Last update 20 Sep 05:52 PM PDT
Extended Forecast for

Illinois Valley OR

  • Tonight

    Tonight: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 85. Light north northeast wind.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48. Light north northeast wind.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43. North northeast wind around 6 mph becoming calm  after midnight.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. Calm wind.
Monday
Mostly sunny, with a high near 85. Light north northeast wind.
Monday Night
Partly cloudy, with a low around 48. Light north northeast wind.
Tuesday
Mostly sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 43. North northeast wind around 6 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Partly sunny, with a high near 78.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 44.
Friday
A chance of rain before 11am. Partly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 74.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Illinois Valley OR
 42.09°N 123.68°W (Elev. 1394 ft)
4:40 pm PDT Sep 20, 2026
6pm PDT Sep 20, 2026-6pm PDT Sep 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database