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

45°F

7°C

Humidity 63%
Wind Speed W 1 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 15 Apr 07:52 PM PDT
Extended Forecast for

9 Miles ENE Happy Camp CA

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

  • Tonight

    Tonight: A 30 percent chance of rain before 9pm. Widespread frost, mainly after 5am. Snow level 2900 feet lowering to 1400 feet after midnight . Otherwise, mostly clear, with a low around 32. West wind 5 to 7 mph becoming light and variable after midnight.

    Low: 32 °F

    Chance Rain
    then Frost

  • Thursday

    Thursday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 57 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost after 2am. Otherwise, clear, with a low around 31. East northeast wind 3 to 7 mph.

    Low: 31 °F

    Clear then
    Frost

  • Friday

    Friday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 69. Light and variable wind.

    High: 69 °F

    Frost then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

Detailed Forecast

Tonight
A 30 percent chance of rain before 9pm. Widespread frost, mainly after 5am. Snow level 2900 feet lowering to 1400 feet after midnight . Otherwise, mostly clear, with a low around 32. West wind 5 to 7 mph becoming light and variable after midnight.
Thursday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming north 5 to 8 mph in the afternoon.
Thursday Night
Widespread frost after 2am. Otherwise, clear, with a low around 31. East northeast wind 3 to 7 mph.
Friday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 69. Light and variable wind.
Friday Night
Partly cloudy, with a low around 39. Light and variable wind.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Mostly cloudy, with a high near 65.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 43.
Monday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 64.
Monday Night
A chance of rain. Mostly cloudy, with a low around 42.
Tuesday
A chance of rain. Partly sunny, with a high near 63.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Partly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
Last Update:
7:57 pm PDT Apr 15, 2026
Forecast Valid:
8pm PDT Apr 15, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation