Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

41°F

5°C

Humidity 72%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 18 Feb 02:52 PM PST
Extended Forecast for

12 Miles NNE Happy Camp CA

Winter Storm Warning February 18, 03:39pm until February 19, 10:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning February 18, 03:39pm until February 19, 10:00am

    NOW until 10:00am Thu

    Winter Storm Warning

  • This Afternoon

    High: 24 °F

    Snow Likely

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Low around 21. South wind 8 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 21 °F

    Snow Likely
    then Heavy
    Snow

  • Thursday

    Thursday: Snow likely, mainly after 2pm.  Mostly cloudy, with a high near 26. Southwest wind 5 to 11 mph becoming north northwest in the afternoon.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 26 °F

    Chance Snow
    then Snow
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow, mainly before 10pm.  Mostly cloudy, with a low around 16. North wind 5 to 9 mph becoming light  after midnight.  New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Chance Snow
    then Slight
    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow, mainly after 10am.  Partly sunny, with a high near 29. South southwest wind 7 to 10 mph.  Little or no snow accumulation expected.

    High: 29 °F

    Chance Snow

  • Friday Night

    Friday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: Snow likely, mainly after 4pm.  Mostly cloudy, with a high near 34. Breezy.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Snow Likely
    and Breezy

  • Saturday Night

    Saturday Night: Snow.  Mostly cloudy, with a low around 31. Breezy.

    Low: 31 °F

    Snow and
    Breezy

Detailed Forecast

This Afternoon
Snow likely, mainly before 4pm. Mostly cloudy, with a high near 24. South southwest wind around 7 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow. The snow could be heavy at times. Low around 21. South wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow likely, mainly after 2pm. Mostly cloudy, with a high near 26. Southwest wind 5 to 11 mph becoming north northwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 50 percent chance of snow, mainly before 10pm. Mostly cloudy, with a low around 16. North wind 5 to 9 mph becoming light after midnight. New snow accumulation of less than a half inch possible.
Friday
A 30 percent chance of snow, mainly after 10am. Partly sunny, with a high near 29. South southwest wind 7 to 10 mph. Little or no snow accumulation expected.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly after 4pm. Mostly cloudy, with a high near 34. Breezy. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Snow. Mostly cloudy, with a low around 31. Breezy.
Sunday
Snow. The snow could be heavy at times. Cloudy, with a high near 37. Breezy.
Sunday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 34.
Monday
Snow. The snow could be heavy at times. Cloudy, with a high near 35.
Monday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 32.
Tuesday
Snow. The snow could be heavy at times. Cloudy, with a high near 36.
Tuesday Night
Snow. Mostly cloudy, with a low around 31.
Wednesday
Snow likely. Mostly cloudy, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.95°N 123.31°W (Elev. 4911 ft)
2:57 pm PST Feb 18, 2026
3pm PST Feb 18, 2026-6pm PST Feb 25, 2026
 
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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