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

84°F

29°C

Humidity 24%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Heat Index82°F (28°C)
Last update 20 Mar 03:52 PM PDT
Extended Forecast for

11 Miles NNE Happy Camp CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. North wind 5 to 7 mph becoming light and variable.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 51. North wind 5 to 10 mph.

    High: 51 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. North northeast wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 57. Northeast wind 5 to 8 mph.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40. North wind 5 to 7 mph.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly after 11pm. Snow level 8200 feet lowering to 7100 feet after midnight . Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. North wind 5 to 7 mph becoming light and variable.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 51. North wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 35. North northeast wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 57. Northeast wind 5 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 40. North wind 5 to 7 mph.
Monday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
A chance of rain, mainly after 11pm. Snow level 8200 feet lowering to 7100 feet after midnight . Mostly cloudy, with a low around 41.
Wednesday
A slight chance of rain before 11am. Snow level 6700 feet lowering to 5800 feet in the afternoon . Partly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.94°N 123.25°W (Elev. 4360 ft)
Last Update:
3:21 pm PDT Mar 20, 2026
Forecast Valid:
4pm PDT Mar 20, 2026-6pm PDT Mar 27, 2026
 
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Additional Resources

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National Digital Forecast Database

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation