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

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

32°F

0°C

Humidity	97%
Wind Speed	WSW 0 MPH
Barometer	NA
Dewpoint	31°F (-1°C)
Visibility	NA
Last update	20 Jan 08:52 PM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Illinois Valley OR

Air Stagnation Advisory January 20, 09:33pm until January 21, 04:00pm

Freezing Fog Advisory January 20, 09:33pm until January 21, 12:00pm

Click here for hazard details and duration

Air Stagnation Advisory

Freezing Fog Advisory

Air Stagnation Advisory January 20, 09:33pm until January 21, 04:00pm
Freezing Fog Advisory January 20, 09:33pm until January 21, 12:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 29 °F
Freezing Fog
and Patchy
Fog
Wednesday
High: 57 °F
Freezing Fog
and Areas Fog
then Partly
Sunny
Wednesday Night
Low: 29 °F
Patchy Fog
Thursday
High: 51 °F
Areas Fog
then Sunny
Thursday Night
Low: 28 °F
Mostly Clear
Friday
High: 50 °F
Sunny
Friday Night
Low: 35 °F
Clear
Saturday
High: 52 °F
Sunny

Detailed Forecast

Tonight

Patchy fog. Widespread freezing fog after 1am. Otherwise, mostly cloudy, with a low around 29. West northwest wind around 5 mph becoming calm in the evening.

Wednesday

Areas of fog before 10am. Widespread freezing fog before 7am. Otherwise, mostly cloudy, with a high near 57. Calm wind.

Wednesday Night

Patchy fog. Otherwise, mostly cloudy, with a low around 29. Calm wind.

Thursday

Areas of fog before 10am. Otherwise, sunny, with a high near 51. North northeast wind 3 to 5 mph.

Thursday Night

Mostly clear, with a low around 28. Northeast wind 3 to 5 mph.

Friday

Sunny, with a high near 50.

Friday Night

Clear, with a low around 35.