Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

67°F

19°C

Humidity 34%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 18 Jun 03:52 AM PDT
Extended Forecast for

11 Miles NNE Happy Camp CA

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 80. Light and variable wind becoming south around 6 mph in the morning.

    High: 80 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 56. Northeast wind 5 to 7 mph becoming calm  after midnight.

    Low: 56 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 72. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 11pm.  Partly cloudy, with a low around 55. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 55 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 69. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 80. Light and variable wind becoming south around 6 mph in the morning.
Tonight
Mostly clear, with a low around 56. Northeast wind 5 to 7 mph becoming calm after midnight.
Juneteenth
Mostly sunny, with a high near 72. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 55. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 69. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.
Saturday Night
Clear, with a low around 49.
Sunday
Sunny, with a high near 75.
Sunday Night
Clear, with a low around 53.
Monday
Sunny, with a high near 81.
Monday Night
Clear, with a low around 60.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Clear, with a low around 56.
Wednesday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.95°N 123.28°W (Elev. 4839 ft)
1:46 am PDT Jun 18, 2026
4am PDT Jun 18, 2026-6pm PDT Jun 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database