Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

58°F

14°C

Humidity 73%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 18 Aug 01:52 AM PDT
Extended Forecast for

5 Miles ENE Happy Camp CA

  • Overnight

    Overnight: Partly cloudy, with a low around 54. East wind around 6 mph.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 87. Light and variable wind becoming north northwest 5 to 8 mph in the afternoon.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 55. North wind 6 to 8 mph becoming east in the evening.

    Low: 55 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 89. East northeast wind 5 to 8 mph becoming light and variable.

    High: 89 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West northwest wind 5 to 9 mph becoming light and variable.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 54. East wind around 6 mph.
Tuesday
Sunny, with a high near 87. Light and variable wind becoming north northwest 5 to 8 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 55. North wind 6 to 8 mph becoming east in the evening.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 89. East northeast wind 5 to 8 mph becoming light and variable.
Wednesday Night
Mostly clear, with a low around 56. West northwest wind 5 to 9 mph becoming light and variable.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 82.
Saturday Night
Clear, with a low around 50.
Sunday
Sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Happy Camp CA
 41.82°N 123.27°W (Elev. 3593 ft)
1:41 am PDT Aug 18, 2026
2am PDT Aug 18, 2026-6pm PDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database