Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

25°F

-4°C

Humidity 97%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 20 Jan 05:52 AM PST
Extended Forecast for

9 Miles ENE Happy Camp CA

  • Today

    Today: Partly sunny, with a high near 55. East northeast wind around 6 mph.

    High: 55 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Light east northeast wind.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 55. Light east wind.

    High: 55 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35. Light east southeast wind.

    Low: 35 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 58. Calm wind.

    High: 58 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 55. East northeast wind around 6 mph.
Tonight
Mostly cloudy, with a low around 35. Light east northeast wind.
Wednesday
Partly sunny, with a high near 55. Light east wind.
Wednesday Night
Mostly cloudy, with a low around 35. Light east southeast wind.
Thursday
Sunny, with a high near 58. Calm wind.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 31.
Saturday
Sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
A slight chance of rain. Partly sunny, with a high near 56.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
3:41 am PST Jan 20, 2026
6am PST Jan 20, 2026-6pm PST Jan 26, 2026
 
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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