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

38°F

3°C

Humidity 86%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 19 Jan 05:52 PM PST
Extended Forecast for

13 Miles NE Happy Camp CA

  • Tonight

    Tonight: Mostly clear, with a low around 45. East southeast wind around 7 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. Southeast wind 3 to 5 mph.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46. South southeast wind 3 to 5 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48. South southeast wind around 5 mph becoming calm  in the afternoon.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. North wind around 7 mph becoming east in the evening.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 45. East southeast wind around 7 mph.
Tuesday
Mostly sunny, with a high near 50. Southeast wind 3 to 5 mph.
Tuesday Night
Mostly cloudy, with a low around 46. South southeast wind 3 to 5 mph.
Wednesday
Mostly cloudy, with a high near 48. South southeast wind around 5 mph becoming calm in the afternoon.
Wednesday Night
Partly cloudy, with a low around 41. North wind around 7 mph becoming east in the evening.
Thursday
Sunny, with a high near 43.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 39.
Friday Night
Mostly clear, with a low around 30.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A slight chance of snow. Partly sunny, with a high near 42.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NE Happy Camp CA
 41.93°N 123.18°W (Elev. 5801 ft)
3:41 pm PST Jan 19, 2026
6pm PST Jan 19, 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