Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

49°F

9°C

Humidity 67%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 20 Jan 01:52 PM PST
Extended Forecast for

11 Miles WSW Wilderville OR

Air Stagnation Advisory January 20, 02:38pm until January 21, 04:00pm
Freezing Fog Advisory January 20, 07:00pm until January 21, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 20, 02:38pm until January 21, 04:00pm

    NOW until 4:00pm Wed

    Air Stagnation Advisory

  • This Afternoon

    High: 55 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 52. West southwest wind 5 to 9 mph becoming east after midnight.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52. North northeast wind 5 to 9 mph becoming calm  in the afternoon.

    High: 52 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. Calm wind becoming north 5 to 8 mph in the evening.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 49. North wind around 8 mph.

    High: 49 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 55. Calm wind.
Tonight
Mostly cloudy, with a steady temperature around 52. West southwest wind 5 to 9 mph becoming east after midnight.
Wednesday
Mostly cloudy, with a high near 52. North northeast wind 5 to 9 mph becoming calm in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 42. Calm wind becoming north 5 to 8 mph in the evening.
Thursday
Sunny, with a high near 49. North wind around 8 mph.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 44.
Friday Night
Clear, with a low around 36.
Saturday
Sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Partly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 46.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Wilderville OR
 42.34°N 123.66°W (Elev. 4183 ft)
2:21 pm PST Jan 20, 2026
2pm PST Jan 20, 2026-6pm PST Jan 26, 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