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

28°F

-2°C

Humidity 98%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 18 Jan 09:52 PM PST
Extended Forecast for

11 Miles NNE Happy Camp CA

  • Tonight

    Tonight: Mostly clear, with a low around 42. Light east wind.

    Low: 42 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 51. East southeast wind 3 to 5 mph.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. East wind around 6 mph becoming calm  after midnight.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. Light south southwest wind.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 43. South wind 5 to 7 mph.

    Low: 43 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Thursday Night

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

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Light east wind.
M.L.King Day
Sunny, with a high near 51. East southeast wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 45. East wind around 6 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 50. Light south southwest wind.
Tuesday Night
Mostly cloudy, with a low around 43. South wind 5 to 7 mph.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 47.
Thursday Night
Mostly clear, with a low around 34.
Friday
A slight chance of snow before 1pm, then a slight chance of rain and snow. Mostly sunny, with a high near 42.
Friday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 33.
Saturday
A slight chance of rain and snow. Partly sunny, with a high near 42.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 33.
Sunday
A chance of rain and snow. Mostly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.95°N 123.28°W (Elev. 4839 ft)
9:56 pm PST Jan 18, 2026
10pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database