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

37°F

3°C

Humidity 98%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 19 Jan 11:52 AM PST
Extended Forecast for

9 Miles ENE Happy Camp CA

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 59. East northeast wind around 9 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. East northeast wind around 6 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. East wind 3 to 5 mph.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

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

    High: 55 °F

    Partly Sunny

  • Wednesday Night

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

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Thursday Night

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

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

M.L.King Day
Sunny, with a high near 59. East northeast wind around 9 mph.
Tonight
Mostly clear, with a low around 35. East northeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 55. East wind 3 to 5 mph.
Tuesday Night
Mostly cloudy, with a low around 35. Light east southeast wind.
Wednesday
Partly sunny, with a high near 55. Light east southeast wind.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 38.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
A slight chance of rain. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
11:51 am PST Jan 19, 2026
12pm PST Jan 19, 2026-6pm PST Jan 25, 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