Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

79°F

26°C

Humidity 20%
Wind Speed N 10 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Heat Index78°F (26°C)
Last update 01 Jul 02:52 PM PDT
Extended Forecast for

16 Miles NNE Happy Camp CA

  • Tonight

    Tonight: Mostly clear, with a low around 42. North wind 8 to 13 mph becoming light northeast  after midnight. Winds could gust as high as 20 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 64. Northeast wind 5 to 8 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47. North wind 5 to 10 mph becoming light north northeast  after midnight.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. Light and variable wind becoming north northwest 5 to 8 mph in the morning.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 53. North wind 6 to 14 mph, with gusts as high as 21 mph.

    Low: 53 °F

    Clear

  • Independence Day

    Independence Day: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 42. North wind 8 to 13 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 64. Northeast wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 47. North wind 5 to 10 mph becoming light north northeast after midnight.
Friday
Sunny, with a high near 69. Light and variable wind becoming north northwest 5 to 8 mph in the morning.
Friday Night
Clear, with a low around 53. North wind 6 to 14 mph, with gusts as high as 21 mph.
Independence Day
Sunny, with a high near 72.
Saturday Night
Clear, with a low around 55.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNE Happy Camp CA
 42.01°N 123.24°W (Elev. 5344 ft)
11:26 am PDT Jul 1, 2026
3pm PDT Jul 1, 2026-6pm PDT Jul 8, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database