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

Gusty winds and low relative humidity will bring critical fire weather to the central and southern High Plains Wednesday. Two Pacific storms will continue impacting the mountains of the western U.S. into Thursday with gusty winds and heavy snow. Heavy snow and gusty winds will continue to impact the northern Plains into the central Great Lakes Wednesday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

32°F

0°C

Humidity 98%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 17 Feb 08:52 PM PST
Extended Forecast for

14 Miles SE Agness OR

Winter Weather Advisory February 17, 09:24pm until February 19, 10:00am
Winter Storm Warning February 17, 09:24pm until February 19, 10:00am
Click here for hazard details and duration
Winter Weather Advisory
Winter Storm Warning
  •  
    Winter Weather Advisory February 17, 09:24pm until February 19, 10:00am
    Winter Storm Warning February 17, 09:24pm until February 19, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 27 °F

    Snow Likely

  • Wednesday

    Wednesday: A slight chance of snow before 7am, then snow after 8am.  High near 36. South southwest wind 5 to 10 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Chance Snow
    then Snow

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times.  Low around 31. South southwest wind 6 to 8 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 31 °F

    Heavy Snow

  • Thursday

    Thursday: Snow.  High near 37. Northwest wind 3 to 6 mph.  Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    High: 37 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 26. Northwest wind around 5 mph becoming light and variable  in the evening.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Snow Likely
    then Chance
    Snow

  • Friday

    Friday: Snow likely, mainly after 10am.  Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Likely

  • Friday Night

    Friday Night: Snow likely.  Mostly cloudy, with a low around 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 33 °F

    Snow Likely

  • Saturday

    Saturday: Snow likely before 10am, then rain and snow likely between 10am and 1pm, then rain likely after 1pm.  Snow level rising to 3400 feet in the afternoon. Mostly cloudy, with a high near 44.

    High: 44 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
Snow likely, mainly between 3am and 5am. Mostly cloudy, with a steady temperature around 27. Light south southeast wind. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
A slight chance of snow before 7am, then snow after 8am. High near 36. South southwest wind 5 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Low around 31. South southwest wind 6 to 8 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Thursday
Snow. High near 37. Northwest wind 3 to 6 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Thursday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 26. Northwest wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after 10am. Mostly cloudy, with a high near 39. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
Snow likely. Mostly cloudy, with a low around 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday
Snow likely before 10am, then rain and snow likely between 10am and 1pm, then rain likely after 1pm. Snow level rising to 3400 feet in the afternoon. Mostly cloudy, with a high near 44.
Saturday Night
Rain likely before 10pm, then rain, possibly mixed with snow. Snow level 3400 feet. Cloudy, with a low around 39.
Sunday
Rain, possibly mixed with snow. Snow level 3600 feet. Cloudy, with a high near 42.
Sunday Night
Rain and snow. Snow level 3400 feet. Cloudy, with a low around 40.
Monday
Rain and snow. Snow level 3200 feet. Cloudy, with a high near 43.
Monday Night
Rain and snow. Snow level 3100 feet. Cloudy, with a low around 40.
Tuesday
Rain and snow. Snow level 3100 feet. Cloudy, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SE Agness OR
 42.42°N 123.87°W (Elev. 2461 ft)
3:41 pm PST Feb 17, 2026
9pm PST Feb 17, 2026-6pm PST Feb 24, 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