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

46°F

8°C

Humidity 98%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 21 Mar 07:52 AM PDT
Extended Forecast for

Happy Camp CA

  • Today

    Today: Sunny, with a high near 71. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Widespread frost after 2am. Otherwise, partly cloudy, with a low around 38. North northeast wind 5 to 8 mph.

    Low: 38 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 11am. Otherwise, mostly sunny, with a high near 73. North wind 3 to 8 mph.

    High: 73 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. Light and variable wind becoming north around 5 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 73. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Partly sunny, with a high near 66. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Rain Likely

  • Tuesday Night

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

    Low: 43 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain, mainly before 11am. Partly sunny, with a high near 64.

    High: 64 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 71. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Tonight
Widespread frost after 2am. Otherwise, partly cloudy, with a low around 38. North northeast wind 5 to 8 mph.
Sunday
Widespread frost before 11am. Otherwise, mostly sunny, with a high near 73. North wind 3 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 40. Light and variable wind becoming north around 5 mph.
Monday
Mostly sunny, with a high near 73. Calm wind becoming west southwest around 6 mph in the afternoon.
Monday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 42.
Tuesday
Rain likely, mainly after 11am. Partly sunny, with a high near 66. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 43.
Wednesday
A chance of rain, mainly before 11am. Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Sunny, with a high near 73.
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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 am PDT Mar 21, 2026
Forecast Valid:
8am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
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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