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

7 Miles SW Illinois Valley OR

Winter Weather Advisory February 18, 03:43pm until February 19, 10:00am
Winter Storm Warning February 18, 03:43pm until February 19, 10:00am
Click here for hazard details and duration
Winter Weather Advisory
Winter Storm Warning
  •  
    Winter Weather Advisory February 18, 03:43pm until February 19, 10:00am
    Winter Storm Warning February 18, 03:43pm until February 19, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 35 °F

    Snow Likely

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Low around 27. South wind 6 to 11 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 27 °F

    Heavy Snow

  • Thursday

    Thursday: Snow likely, mainly after 10am.  Mostly cloudy, with a high near 37. South southwest wind 5 to 7 mph becoming north northeast in the morning.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Chance Snow
    then Snow
    Likely

  • Thursday Night

    Thursday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 21. West wind around 6 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Snow Likely
    then Chance
    Snow

  • Friday

    Friday: A chance of snow before 1pm, then a chance of rain and snow.  Partly sunny, with a high near 39. South southwest wind 6 to 9 mph.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow before 10pm, then snow likely between 10pm and 4am, then rain and snow likely after 4am.  Snow level 2500 feet. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain and snow likely, becoming all rain after 1pm.  Snow level 2600 feet rising to 3800 feet in the afternoon. Mostly cloudy, with a high near 44. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: Rain likely before 10pm, then rain, possibly mixed with snow between 10pm and 1am, then rain after 1am. The rain could be heavy at times.  Snow level 4000 feet. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Rain/Snow

Detailed Forecast

This Afternoon
Snow likely, mainly before 4pm. Mostly cloudy, with a high near 35. South southwest wind around 8 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow. The snow could be heavy at times. Low around 27. South wind 6 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow likely, mainly after 10am. Mostly cloudy, with a high near 37. South southwest wind 5 to 7 mph becoming north northeast in the morning. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 21. West wind around 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 39. South southwest wind 6 to 9 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
A chance of rain and snow before 10pm, then snow likely between 10pm and 4am, then rain and snow likely after 4am. Snow level 2500 feet. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Rain and snow likely, becoming all rain after 1pm. Snow level 2600 feet rising to 3800 feet in the afternoon. Mostly cloudy, with a high near 44. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
Rain likely before 10pm, then rain, possibly mixed with snow between 10pm and 1am, then rain after 1am. The rain could be heavy at times. Snow level 4000 feet. Mostly cloudy, with a low around 34.
Sunday
Rain. The rain could be heavy at times. Snow level 4300 feet. Cloudy, with a high near 42.
Sunday Night
Rain. The rain could be heavy at times. Snow level 4800 feet. Cloudy, with a low around 37.
Monday
Rain. The rain could be heavy at times. Snow level 4300 feet. Cloudy, with a high near 44.
Monday Night
Rain, possibly mixed with snow. Snow level 3900 feet. Cloudy, with a low around 34.
Tuesday
Rain, possibly mixed with snow. Snow level 3600 feet. Cloudy, with a high near 43.
Tuesday Night
Rain, possibly mixed with snow. Snow level 3500 feet. Mostly cloudy, with a low around 34.
Wednesday
Rain, possibly mixed with snow. Snow level 3300 feet rising to 3800 feet in the afternoon. Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SW Illinois Valley OR
 42.03°N 123.78°W (Elev. 2428 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