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

51°F

11°C

Humidity 65%
Wind Speed WSW 9 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 27 Jan 03:52 PM PST
Extended Forecast for

12 Miles NNE Happy Camp CA

  • This Afternoon

    This Afternoon: Rain and snow. Snow level 5200 feet. Steady temperature around 39. Breezy, with a south southwest wind around 24 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Snow, mainly before 4am. Low around 32. Breezy, with a south southwest wind 21 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Breezy. Snow
    then Chance
    Snow

  • Wednesday

    Wednesday: A slight chance of snow after 8am, mixing with rain after 2pm. Mostly cloudy, with a high near 39. South southwest wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 39 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow. Snow level 5400 feet. Mostly cloudy, with a low around 36. South southwest wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow before 1pm, then a slight chance of rain. Snow level 5400 feet rising to 6500 feet in the afternoon. Partly sunny, with a high near 45. South wind 10 to 14 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    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 5600 feet rising to 6400 feet in the afternoon. Partly sunny, with a high near 49. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Rain/Snow

  • Friday Night

    Friday Night: A slight chance of rain before 10pm. Snow level 6600 feet. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain and snow. Snow level 5200 feet. Steady temperature around 39. Breezy, with a south southwest wind around 24 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 4am. Low around 32. Breezy, with a south southwest wind 21 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
A slight chance of snow after 8am, mixing with rain after 2pm. Mostly cloudy, with a high near 39. South southwest wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of rain and snow. Snow level 5400 feet. Mostly cloudy, with a low around 36. South southwest wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Thursday
A chance of rain and snow before 1pm, then a slight chance of rain. Snow level 5400 feet rising to 6500 feet in the afternoon. Partly sunny, with a high near 45. South wind 10 to 14 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Snow level 5600 feet rising to 6400 feet in the afternoon. Partly sunny, with a high near 49. Chance of precipitation is 20%.
Friday Night
A slight chance of rain before 10pm. Snow level 6600 feet. Mostly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 51.
Saturday Night
A slight chance of rain after 10pm. Snow level 6500 feet. Mostly cloudy, with a low around 40.
Sunday
A chance of rain and snow. Snow level 5800 feet. Partly sunny, with a high near 45.
Sunday Night
A chance of rain and snow. Snow level 5500 feet. Mostly cloudy, with a low around 38.
Monday
A chance of rain and snow. Snow level rising to 5700 feet in the afternoon. Mostly sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.96°N 123.25°W (Elev. 5138 ft)
Last Update:
3:41 pm PST Jan 27, 2026
Forecast Valid:
4pm PST Jan 27, 2026-6pm PST Feb 3, 2026
 
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Additional Resources

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Chance of Precipitation