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 >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

43°F

6°C

Humidity	84%
Wind Speed	ENE 1 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	21 Jan 11:52 AM PST

More Information:

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

Extended Forecast for

17 Miles NE Happy Camp CA

This Afternoon
High: 55 °F⇓
Mostly Cloudy
Tonight
Low: 49 °F
Decreasing
Clouds
Thursday
High: 56 °F
Sunny
Thursday Night
Low: 41 °F
Mostly Clear
Friday
High: 49 °F
Sunny
Friday Night
Low: 30 °F
Clear
Saturday
High: 47 °F
Sunny
Saturday Night
Low: 33 °F
Mostly Clear
Sunday
High: 48 °F
Partly Sunny

Detailed Forecast

This Afternoon

Mostly cloudy, with a temperature falling to around 50 by 5pm. South southeast wind 5 to 8 mph becoming calm.

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a steady temperature around 49. Light and variable wind becoming south southeast 5 to 10 mph in the evening.

Thursday

Sunny, with a high near 56. East southeast wind 7 to 9 mph becoming north in the afternoon.

Thursday Night

Mostly clear, with a low around 41. North northeast wind around 8 mph.

Friday

Sunny, with a high near 49. North northeast wind 8 to 11 mph.

Friday Night

Clear, with a low around 30.

Saturday

Sunny, with a high near 47.

Saturday Night

Mostly clear, with a low around 33.