National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

67°F

19°C

Humidity 46%
Wind Speed W 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 17 Oct 06:52 PM PDT
Extended Forecast for

2 Miles WSW Happy Camp CA

  • Tonight

    Tonight: Mostly clear, with a low around 40. North wind around 6 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. Calm wind.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 38. West southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 38 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 68. Calm wind.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 35. Light and variable wind.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 40. North wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 81. Calm wind.
Sunday Night
Increasing clouds, with a low around 38. West southwest wind 5 to 8 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 68. Calm wind.
Monday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 35. Light and variable wind.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 73.
Thursday Night
A chance of rain. Partly cloudy, with a low around 36.
Friday
Mostly sunny, with a high near 69.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 33.
Saturday
A chance of rain. Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Happy Camp CA
 41.78°N 123.38°W (Elev. 1381 ft)
Last Update:
4:40 pm PDT Oct 17, 2026
Forecast Valid:
7pm PDT Oct 17, 2026-6pm PDT Oct 24, 2026
 
Forecast Discussion
 
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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