Tracking Winter Weather and Frigid Temperatures This Weekend

Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

27°F

-3°C

Humidity 98%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 18 Jan 03:52 AM PST
Extended Forecast for

Illinois Valley OR

Air Stagnation Advisory January 18, 04:22am until January 20, 10:00am
Freezing Fog Advisory until January 18, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 18, 04:22am until January 20, 10:00am
    Freezing Fog Advisory until January 18, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 31 °F

    Freezing Fog

  • Sunday

    Sunday: Patchy dense fog between 10am and 1pm. Widespread freezing fog before 10am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 50. Calm wind.

    High: 50 °F

    Freezing Fog
    and Patchy
    Dense Fog

  • Sunday Night

    Sunday Night: Patchy dense freezing fog. Partly cloudy, with a low around 29. Light north wind.

    Low: 29 °F

    Patchy Dense
    Freezing Fog

  • M.L.King Day

    M.L.King Day: Patchy fog between 10am and 1pm. Patchy freezing fog before 10am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 53. Light north wind.

    High: 53 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog

  • Monday Night

    Monday Night: Patchy freezing fog. Mostly clear, with a low around 29. Light east wind.

    Low: 29 °F

    Patchy
    Freezing Fog

  • Tuesday

    Tuesday: Patchy fog between 10am and 1pm. Patchy freezing fog before 10am.  Otherwise, mostly sunny, with a high near 49.

    High: 49 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog after 7pm.  Otherwise, partly cloudy, with a low around 34.

    Low: 34 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 1pm.  Otherwise, partly sunny, with a high near 47.

    High: 47 °F

    Patchy Fog

Detailed Forecast

Overnight
Widespread freezing fog. Mostly cloudy, with a low around 31. Calm wind.
Sunday
Patchy dense fog between 10am and 1pm. Widespread freezing fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 50. Calm wind.
Sunday Night
Patchy dense freezing fog. Partly cloudy, with a low around 29. Light north wind.
M.L.King Day
Patchy fog between 10am and 1pm. Patchy freezing fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 53. Light north wind.
Monday Night
Patchy freezing fog. Mostly clear, with a low around 29. Light east wind.
Tuesday
Patchy fog between 10am and 1pm. Patchy freezing fog before 10am. Otherwise, mostly sunny, with a high near 49.
Tuesday Night
Patchy fog after 7pm. Otherwise, partly cloudy, with a low around 34.
Wednesday
Patchy fog before 1pm. Otherwise, partly sunny, with a high near 47.
Wednesday Night
Patchy fog after 7pm. Otherwise, partly cloudy, with a low around 39.
Thursday
Patchy fog before 1pm. Otherwise, mostly sunny, with a high near 53.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 35.
Friday
A chance of rain. Partly sunny, with a high near 49.
Friday Night
A chance of rain. Snow level 4500 feet. Mostly cloudy, with a low around 35.
Saturday
A chance of rain. Snow level 4200 feet. Partly sunny, with a high near 50.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Illinois Valley OR
 42.11°N 123.69°W (Elev. 1398 ft)
3:41 am PST Jan 18, 2026
4am PST Jan 18, 2026-6pm PST Jan 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