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

27°F

-3°C

Humidity 97%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 27 Jan 02:52 AM PST
Extended Forecast for

11 Miles NNE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. South wind around 8 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain and snow, mainly after 4pm. High near 43. South southwest wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 43 °F

    Mostly Cloudy
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 1am, then a chance of snow after 4am. Mostly cloudy, with a low around 33. South southwest wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 40. Southwest wind around 11 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 40 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 7pm, then a chance of rain. Snow level 5400 feet. Mostly cloudy, with a low around 38. South wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 38 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Thursday

    Thursday: A 30 percent chance of rain, mainly before 10am. Snow level 5600 feet rising to 6500 feet in the afternoon. Partly sunny, with a high near 46.

    High: 46 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Snow level 6700 feet. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain after 10am. Snow level 6100 feet. Partly sunny, with a high near 50.

    High: 50 °F

    Slight Chance
    Rain

  • 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 wind around 8 mph, with gusts as high as 20 mph.
Tuesday
Rain and snow, mainly after 4pm. High near 43. South southwest wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain and snow before 1am, then a chance of snow after 4am. Mostly cloudy, with a low around 33. South southwest wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 40. Southwest wind around 11 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain and snow before 7pm, then a chance of rain. Snow level 5400 feet. Mostly cloudy, with a low around 38. South wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday
A 30 percent chance of rain, mainly before 10am. Snow level 5600 feet rising to 6500 feet in the afternoon. Partly sunny, with a high near 46.
Thursday Night
A 20 percent chance of rain before 10pm. Snow level 6700 feet. Mostly cloudy, with a low around 40.
Friday
A slight chance of rain after 10am. Snow level 6100 feet. Partly sunny, with a high near 50.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
Partly sunny, with a high near 51.
Saturday Night
A slight chance of rain. Snow level 6500 feet. Mostly cloudy, with a low around 41.
Sunday
A chance of rain. Snow level 5900 feet. Partly sunny, with a high near 47.
Sunday Night
A chance of rain and snow. Snow level 5600 feet. Mostly cloudy, with a low around 38.
Monday
A slight chance of rain and snow. Snow level 5200 feet rising to 5900 feet in the afternoon. Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.95°N 123.28°W (Elev. 4839 ft)
Last Update:
2:21 am PST Jan 27, 2026
Forecast Valid:
3am PST Jan 27, 2026-6pm PST Feb 2, 2026
 
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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