National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

31°F

-1°C

Humidity 96%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 16 Jan 09:52 AM PST
Extended Forecast for

16 Miles SE Agness OR

Air Stagnation Advisory January 16, 10:52am until January 20, 10:00am
Freezing Fog Advisory January 16, 10:52am until January 16, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 16, 10:52am until January 20, 10:00am
    Freezing Fog Advisory January 16, 10:52am until January 16, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 47. East wind 6 to 8 mph.

    Low: 47 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 59. East wind 5 to 7 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43. Southeast wind 3 to 5 mph.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 58. East southeast wind around 6 mph becoming calm in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 60. East southeast wind 6 to 8 mph.
Tonight
Clear, with a low around 47. East wind 6 to 8 mph.
Saturday
Sunny, with a high near 59. East wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 43. Southeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 58. East southeast wind around 6 mph becoming calm in the afternoon.
Sunday Night
Mostly clear, with a low around 40.
M.L.King Day
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 52.
Wednesday Night
A slight chance of rain. Snow level 4900 feet. Mostly cloudy, with a low around 41.
Thursday
A chance of rain. Snow level 4500 feet. Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.4°N 123.83°W (Elev. 2582 ft)
Last Update:
9:41 am PST Jan 16, 2026
Forecast Valid:
10am PST Jan 16, 2026-6pm PST Jan 22, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation