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

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

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

26°F

-3°C

Humidity 97%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 27 Jan 01:52 AM PST
Extended Forecast for

12 Miles NE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. South southeast wind around 11 mph, with gusts as high as 22 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Snow, mainly after 4pm. High near 41. Breezy, with a south wind 18 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Breezy.
    Mostly Cloudy
    then Snow

  • Tuesday Night

    Tuesday Night: Snow likely before 1am, then a chance of snow after 4am. Mostly cloudy, with a low around 32. South southwest wind 17 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Snow Likely
    then Chance
    Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly before 10am. Mostly cloudy, with a high near 40. South southwest wind around 15 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.

    High: 40 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 37. South wind around 15 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.

    Low: 37 °F

    Chance Snow

  • Thursday

    Thursday: A chance of snow before 10am, then a slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Snow level rising to 6500 feet in the afternoon. Partly sunny, with a high near 45. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Snow level 6800 feet. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Snow level 6100 feet. Partly sunny, with a high near 49.

    High: 49 °F

    Slight Chance
    Rain/Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. South southeast wind around 11 mph, with gusts as high as 22 mph.
Tuesday
Snow, mainly after 4pm. High near 41. Breezy, with a south wind 18 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday Night
Snow likely before 1am, then a chance of snow after 4am. Mostly cloudy, with a low around 32. South southwest wind 17 to 21 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday
A 30 percent chance of snow, mainly before 10am. Mostly cloudy, with a high near 40. South southwest wind around 15 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 37. South wind around 15 mph, with gusts as high as 20 mph. Little or no snow accumulation expected.
Thursday
A chance of snow before 10am, then a slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Snow level rising to 6500 feet in the afternoon. Partly sunny, with a high near 45. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
A 20 percent chance of rain before 10pm. Snow level 6800 feet. Mostly cloudy, with a low around 40.
Friday
A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Snow level 6100 feet. Partly sunny, with a high near 49.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Partly sunny, with a high near 50.
Saturday Night
A slight chance of rain. Snow level 6500 feet. Mostly cloudy, with a low around 41.
Sunday
A chance of rain and snow. Snow level 5900 feet. Partly sunny, with a high near 46.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 38.
Monday
A slight chance of snow. Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Happy Camp CA
 41.92°N 123.21°W (Elev. 5666 ft)
Last Update:
1:30 am PST Jan 27, 2026
Forecast Valid:
2am PST Jan 27, 2026-6pm PST Feb 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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