Critical Fire Weather in the Southern High Plains; Heavy Snow in the Great Lakes and Northeast U.S.

Gusty winds and low relative humidity will bring elevated to critical fire weather conditions to the southern High Plains through the weekend. A winter storm will track across the Great Lakes and Northeast U.S. into Saturday with areas of wintry mix and heavy snow from northern New York through southern Maine. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

26°F

-3°C

Humidity 98%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 20 Feb 03:52 AM PST
Extended Forecast for

12 Miles NNE Happy Camp CA

Winter Storm Watch February 21, 10:00pm until February 23, 04:00am
Cold Weather Advisory until February 20, 09:00am
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory
  •  
    Cold Weather Advisory until February 20, 09:00am

    NOW until 9:00am Fri

    Cold Weather Advisory

  • Overnight

    Low: 16 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 29. South southwest wind 5 to 8 mph.

    High: 29 °F

    Partly Sunny

  • Friday Night

    Friday Night: Snow showers likely before 5am, then a chance of snow after 5am.  Mostly cloudy, with a low around 26. South wind 8 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    Low: 26 °F

    Snow Showers
    Likely

  • Saturday

    Saturday: A 40 percent chance of snow.  Mostly cloudy, with a high near 34. Breezy, with a south wind 22 to 24 mph, with gusts as high as 37 mph.  New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: Snow, mainly after 10pm. The snow could be heavy at times.  Low around 32. Breezy, with a south southeast wind around 29 mph, with gusts as high as 44 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 32 °F

    Heavy Snow
    and Breezy

  • Sunday

    Sunday: Snow before 1pm, then rain, possibly mixed with snow. The snow could be heavy at times.  High near 39. Breezy.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 39 °F

    Breezy. Heavy
    Snow then
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain, possibly mixed with snow, becoming all rain after 7pm.  Snow level 6200 feet. Low around 37. Breezy.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 37 °F

    Breezy.
    Rain/Snow
    then Rain

  • Monday

    Monday: Rain.  Snow level 6500 feet. Cloudy, with a high near 39.

    High: 39 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 16. Light south wind.
Friday
Partly sunny, with a high near 29. South southwest wind 5 to 8 mph.
Friday Night
Snow showers likely before 5am, then a chance of snow after 5am. Mostly cloudy, with a low around 26. South wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 34. Breezy, with a south wind 22 to 24 mph, with gusts as high as 37 mph. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Snow, mainly after 10pm. The snow could be heavy at times. Low around 32. Breezy, with a south southeast wind around 29 mph, with gusts as high as 44 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow before 1pm, then rain, possibly mixed with snow. The snow could be heavy at times. High near 39. Breezy. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Sunday Night
Rain, possibly mixed with snow, becoming all rain after 7pm. Snow level 6200 feet. Low around 37. Breezy. Chance of precipitation is 100%. Little or no snow accumulation expected.
Monday
Rain. Snow level 6500 feet. Cloudy, with a high near 39.
Monday Night
Rain and snow. Snow level 6500 feet lowering to 5900 feet after midnight . Cloudy, with a low around 36.
Tuesday
Rain and snow before 10am, then snow likely between 10am and 1pm, then rain and snow likely after 1pm. Snow level 5000 feet. Mostly cloudy, with a high near 38.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 31.
Wednesday
A chance of snow. Mostly cloudy, with a high near 40.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 34.
Thursday
A chance of snow. Partly sunny, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.95°N 123.31°W (Elev. 4911 ft)
4:17 am PST Feb 20, 2026
4am PST Feb 20, 2026-6pm PST Feb 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database