National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

30°F

-1°C

Humidity 99%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 16 Apr 12:52 AM PDT
Extended Forecast for

Illinois Valley OR

Frost Advisory April 16, 03:00am until April 16, 09:00am
Freeze Warning April 17, 03:00am until April 17, 09:00am
Click here for hazard details and duration
Frost Advisory
Freeze Warning

  • Overnight

    Overnight: Widespread frost. Otherwise, partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Frost

  • Thursday

    Thursday: Widespread frost before 11am. Otherwise, sunny, with a high near 55. Light north northeast wind increasing to 5 to 10 mph in the morning.

    High: 55 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost after 11pm. Otherwise, mostly clear, with a low around 27. North northeast wind 5 to 8 mph becoming calm after midnight.

    Low: 27 °F

    Frost

  • Friday

    Friday: Widespread frost before 11am. Otherwise, mostly sunny, with a high near 67. Calm wind.

    High: 67 °F

    Frost then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Light and variable wind.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely. Mostly cloudy, with a high near 61.

    High: 61 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Rain Likely

Detailed Forecast

Overnight
Widespread frost. Otherwise, partly cloudy, with a low around 28. Calm wind.
Thursday
Widespread frost before 11am. Otherwise, sunny, with a high near 55. Light north northeast wind increasing to 5 to 10 mph in the morning.
Thursday Night
Widespread frost after 11pm. Otherwise, mostly clear, with a low around 27. North northeast wind 5 to 8 mph becoming calm after midnight.
Friday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 67. Calm wind.
Friday Night
Partly cloudy, with a low around 36. Light and variable wind.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Sunday
Rain likely. Mostly cloudy, with a high near 61.
Sunday Night
Rain likely. Mostly cloudy, with a low around 40.
Monday
Rain likely. Mostly cloudy, with a high near 60.
Monday Night
Rain likely. Mostly cloudy, with a low around 39.
Tuesday
Rain likely. Mostly cloudy, with a high near 58.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A 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:
11:26 pm PDT Apr 15, 2026
Forecast Valid:
1am PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation