Heavy Mountain Snow in the Northwest U.S.; Wintry Mix in the Northeast U.S.

Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. overnight into Wednesday. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from January 7, 01:00 PM PST until January 8, 01:00 AM PST

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

41°F

5°C

Humidity	90%
Wind Speed	S 2 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	06 Jan 09:52 PM PST

More Information:

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

Extended Forecast for

11 Miles NNE Happy Camp CA

Winter Weather Advisory January 7, 01:00pm until January 8, 01:00am

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 31 °F
Slight Chance
Snow then
Snow
Wednesday
High: 32 °F⇓
Chance Snow
then Heavy
Snow
Wednesday Night
Low: 21 °F
Heavy Snow
Thursday
High: 29 °F
Chance Snow
Thursday Night
Low: 21 °F
Partly Cloudy
Friday
High: 38 °F
Mostly Sunny
Friday Night
Low: 28 °F
Partly Cloudy
Saturday
High: 39 °F
Partly Sunny
Saturday Night
Low: 31 °F
Mostly Cloudy

Detailed Forecast

Tonight

Snow, mainly between 1am and 4am. Low around 31. South southwest wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.

Wednesday

Snow, mainly after 10am. The snow could be heavy at times. Temperature rising to near 32 by noon, then falling to around 28 during the remainder of the day. Southwest wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 21. Northwest wind around 9 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Thursday

A 40 percent chance of snow. Partly sunny, with a high near 29. North wind around 7 mph. New snow accumulation of less than a half inch possible.

Thursday Night

Partly cloudy, with a low around 21. East wind around 7 mph.

Friday

Mostly sunny, with a high near 38.

Friday Night

Partly cloudy, with a low around 28.

Saturday

Partly sunny, with a high near 39.

Saturday Night

Mostly cloudy, with a low around 31.