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

16 Miles NE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 39. South wind around 7 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain, mainly after 4pm. Snow level 4300 feet rising to 5400 feet in the afternoon. High near 50. Breezy, with a south wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Breezy.
    Mostly Cloudy
    then Rain

  • Tuesday Night

    Tuesday Night: Rain and snow likely before 1am, then a slight chance of rain after 4am. Snow level 5000 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 37. South wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow
    Likely then
    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am. Snow level 4200 feet rising to 4900 feet in the afternoon. Mostly cloudy, with a high near 48. South wind around 11 mph.

    High: 48 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Snow level 5400 feet. Mostly cloudy, with a low around 41. South wind 9 to 11 mph.

    Low: 41 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain. Snow level 5600 feet rising to 6500 feet in the afternoon. Partly sunny, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain after 10am. Snow level 6200 feet. Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain

  • Friday Night

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

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 39. South wind around 7 mph, with gusts as high as 20 mph.
Tuesday
Rain, mainly after 4pm. Snow level 4300 feet rising to 5400 feet in the afternoon. High near 50. Breezy, with a south wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain and snow likely before 1am, then a slight chance of rain after 4am. Snow level 5000 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 37. South wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
A 20 percent chance of rain before 10am. Snow level 4200 feet rising to 4900 feet in the afternoon. Mostly cloudy, with a high near 48. South wind around 11 mph.
Wednesday Night
A 40 percent chance of rain. Snow level 5400 feet. Mostly cloudy, with a low around 41. South wind 9 to 11 mph.
Thursday
A 20 percent chance of rain. Snow level 5600 feet rising to 6500 feet in the afternoon. Partly sunny, with a high near 52.
Thursday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 44.
Friday
A slight chance of rain after 10am. Snow level 6200 feet. Partly sunny, with a high near 56.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 58.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 44.
Sunday
A chance of rain. Snow level 5900 feet. Partly sunny, with a high near 54.
Sunday Night
A chance of rain. Snow level 5700 feet. Mostly cloudy, with a low around 41.
Monday
A slight chance of rain. Snow level 5200 feet rising to 5900 feet in the afternoon. Mostly sunny, with a high near 54.
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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:
1:30 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

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