National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

51°F

11°C

Humidity 80%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 28 Jan 12:52 PM PST
Extended Forecast for

16 Miles NE Happy Camp CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 47. South southwest wind around 9 mph.

    High: 47 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 3am. Snow level 5600 feet. Mostly cloudy, with a low around 40. South wind around 10 mph.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 54. South wind 8 to 10 mph.

    High: 54 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. South southeast wind 8 to 10 mph.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 56. South wind 7 to 10 mph.

    High: 56 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain. Snow level 5800 feet. Partly sunny, with a high near 51.

    High: 51 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 47. South southwest wind around 9 mph.
Tonight
A 20 percent chance of rain after 3am. Snow level 5600 feet. Mostly cloudy, with a low around 40. South wind around 10 mph.
Thursday
Partly sunny, with a high near 54. South wind 8 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 44. South southeast wind 8 to 10 mph.
Friday
Partly sunny, with a high near 56. South wind 7 to 10 mph.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
A chance of rain. Snow level 5800 feet. Partly sunny, with a high near 51.
Sunday Night
A chance of rain, mainly before 10pm. Snow level 5600 feet. Mostly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NE Happy Camp CA
 41.97°N 123.17°W (Elev. 2999 ft)
Last Update:
1:06 pm PST Jan 28, 2026
Forecast Valid:
1pm PST Jan 28, 2026-6pm PST Feb 3, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation