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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

70°F

21°C

Humidity 28%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 21 Mar 03:52 PM PDT
Extended Forecast for

Happy Camp CA

  • Tonight

    Tonight: Widespread frost after 2am. Otherwise, partly cloudy, with a low around 39. North wind 5 to 7 mph.

    Low: 39 °F

    Partly Cloudy
    then Frost

  • Sunday

    Sunday: Widespread frost before 11am. Otherwise, mostly sunny, with a high near 73. Northeast wind 6 to 9 mph.

    High: 73 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Light northeast wind.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 72. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 46. South wind 3 to 7 mph.

    Low: 46 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain. Partly sunny, with a high near 68.

    High: 68 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain. Partly sunny, with a high near 65.

    High: 65 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Widespread frost after 2am. Otherwise, partly cloudy, with a low around 39. North wind 5 to 7 mph.
Sunday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 73. Northeast wind 6 to 9 mph.
Sunday Night
Partly cloudy, with a low around 42. Light northeast wind.
Monday
Mostly sunny, with a high near 72. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Monday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 46. South wind 3 to 7 mph.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 68.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 46.
Wednesday
A chance of rain. Partly sunny, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Happy Camp CA
 41.81°N 123.36°W (Elev. 1299 ft)
Last Update:
3:21 pm PDT Mar 21, 2026
Forecast Valid:
4pm PDT Mar 21, 2026-6pm PDT Mar 28, 2026
 
Forecast Discussion
 
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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