Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

54°F

12°C

Humidity 72%
Wind Speed NE 4 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 28 Nov 10:52 AM PST
Extended Forecast for

13 Miles W Happy Camp CA

  • Today

    Today: Mostly sunny, with a high near 40. Light east wind.

    High: 40 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. East wind around 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 44. Light and variable wind becoming west around 5 mph in the morning.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 34. West northwest wind around 7 mph.

    Low: 34 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 41. North northeast wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 41 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Monday Night

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

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 40. Light east wind.
Tonight
Partly cloudy, with a low around 34. East wind around 6 mph.
Saturday
Sunny, with a high near 44. Light and variable wind becoming west around 5 mph in the morning.
Saturday Night
Partly cloudy, with a low around 34. West northwest wind around 7 mph.
Sunday
Mostly sunny, with a high near 41. North northeast wind 7 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles W Happy Camp CA
 41.84°N 123.61°W (Elev. 5978 ft)
10:46 am PST Nov 28, 2025
11am PST Nov 28, 2025-6pm PST Dec 4, 2025
 
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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