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

35°F

2°C

Humidity 97%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 18 Jan 06:52 PM PST
Extended Forecast for

9 Miles ENE Happy Camp CA

  • Tonight

    Tonight: Clear, with a low around 36. East northeast wind around 6 mph.

    Low: 36 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 58. East northeast wind around 9 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: 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: Partly cloudy, with a low around 35. Light east southeast wind.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly 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 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 36. East northeast wind around 6 mph.
M.L.King Day
Sunny, with a high near 58. East northeast wind around 9 mph.
Monday Night
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
Partly cloudy, with a low around 35. Light east southeast wind.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 38.
Friday
A slight chance of rain. Mostly sunny, with a high near 56.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 38.
Saturday
A slight chance of rain. Snow level 4200 feet rising to 4900 feet in the afternoon. Mostly sunny, with a high near 55.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 36.
Sunday
A slight chance of rain. Mostly 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)
6:46 pm PST Jan 18, 2026
7pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database