Heavy Snow in the Cascades and Northern Rockies; Wintry Mix in the Northeast; High Winds in Southern California

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. today. High winds could blow down trees and power lines in the mountains of southern California this evening through Thursday. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from January 7, 01:00 PM PST until January 8, 10:00 AM PST

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

42°F

6°C

Humidity	98%
Wind Speed	SE 0 MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Last update	07 Jan 04:52 AM PST

More Information:

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

Extended Forecast for

17 Miles SSE Agness OR

Winter Weather Advisory January 7, 01:00pm until January 8, 10:00am

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 39 °F
Chance Rain
Wednesday
High: 38 °F⇓
Rain/Snow
Wednesday Night
Low: 30 °F
Rain/Snow
then Snow
Showers
Thursday
High: 37 °F
Snow Likely
then Chance
Rain/Snow
Thursday Night
Low: 29 °F
Partly Cloudy
Friday
High: 46 °F
Mostly Sunny
Friday Night
Low: 33 °F
Partly Cloudy
Saturday
High: 47 °F
Partly Sunny
Saturday Night
Low: 37 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 40 percent chance of rain. Snow level 4000 feet. Mostly cloudy, with a steady temperature around 39. Southwest wind around 10 mph.

Wednesday

Rain, possibly mixed with snow. Snow level 3300 feet lowering to 2700 feet in the afternoon . Temperature falling to around 34 by 5pm. Southwest wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Wednesday Night

Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Low around 30. West northwest wind 7 to 9 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

Thursday

Snow likely before 1pm, then a chance of rain and snow. Partly sunny, with a high near 37. North wind around 5 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Thursday Night

Partly cloudy, with a low around 29. East wind 5 to 8 mph.

Friday

Mostly sunny, with a high near 46.

Friday Night

Partly cloudy, with a low around 33.

Saturday

Partly sunny, with a high near 47.

Saturday Night

Mostly cloudy, with a low around 37.

Sunday

Partly sunny, with a high near 49.