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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

57°F

14°C

Humidity 47%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 17 Jan 02:52 PM PST
Extended Forecast for

16 Miles SE Agness OR

Air Stagnation Advisory January 17, 03:00pm until January 20, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 17, 03:00pm until January 20, 10:00am

    NOW until 10:00am Tue

    Air Stagnation Advisory

  • Tonight

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 58. East southeast wind around 5 mph becoming calm in the morning.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 44. East wind around 6 mph.

    Low: 44 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 60. East wind 6 to 8 mph.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 44. East wind around 6 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. Calm wind becoming east southeast around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 58. East southeast wind around 5 mph becoming calm in the morning.
Sunday Night
Clear, with a low around 44. East wind around 6 mph.
M.L.King Day
Sunny, with a high near 60. East wind 6 to 8 mph.
Monday Night
Clear, with a low around 44. East wind around 6 mph.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 56.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 51.
Friday Night
A slight chance of rain. Snow level 4300 feet lowering to 3700 feet after midnight . Partly cloudy, with a low around 37.
Saturday
A chance of rain. Snow level 3500 feet. Partly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
Last Update:
2:21 pm PST Jan 17, 2026
Forecast Valid:
3pm PST Jan 17, 2026-6pm PST Jan 24, 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