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

74°F

23°C

Humidity 37%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 20 Mar 06:52 PM PDT
Extended Forecast for

Happy Camp CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. West northwest wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Widespread frost after 2am. Otherwise, mostly clear, with a low around 30. North northeast wind 5 to 8 mph.

    Low: 30 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 11am. Otherwise, mostly sunny, with a high near 75. North wind 3 to 8 mph.

    High: 75 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. Light and variable wind becoming north around 5 mph.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. West northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 74. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Saturday Night
Widespread frost after 2am. Otherwise, mostly clear, with a low around 30. North northeast wind 5 to 8 mph.
Sunday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 75. North wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 37. Light and variable wind becoming north around 5 mph.
Monday
Mostly sunny, with a high near 77.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 41.
Wednesday
A slight chance of rain before 11am. Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 78.
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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:
4:41 pm PDT Mar 20, 2026
Forecast Valid:
7pm PDT Mar 20, 2026-6pm PDT Mar 27, 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