Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Shasta (KMHS)

Lat: 41.31494°NLon: 122.31702°WElev: 3540.0ft.

Partly Cloudy

44°F

7°C

Humidity	85%
Wind Speed	E 5 MPH
Barometer	29.61 in (1002.71 mb)
Dewpoint	40°F (4°C)
Visibility	10.00 mi
Wind Chill	41°F (5°C)
Last update	24 Dec 10:56 AM PST

More Information:

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

Extended Forecast for

8 Miles SW Weed CA

Winter Storm Warning December 24, 11:52am until December 26, 10:00am

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning December 24, 11:52am until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Today
High: 33 °F
Heavy Snow
and Breezy
Tonight
Low: 24 °F⇑
Heavy Snow
and Windy
Christmas Day
High: 28 °F⇓
Heavy Snow
and Windy
Thursday Night
Low: 24 °F
Heavy Snow
and Windy
Friday
High: 27 °F
Heavy Snow
and Windy
Friday Night
Low: 23 °F
Snow Likely
then Chance
Snow
Saturday
High: 26 °F
Mostly Sunny
Saturday Night
Low: 18 °F
Mostly Clear

Detailed Forecast

Today

Snow likely, mainly before 3pm. The snow could be heavy at times. Mostly cloudy, with a high near 33. Breezy, with a south wind 18 to 24 mph becoming northeast in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 7 to 11 inches possible.

Tonight

Snow, mainly after 8pm. The snow could be heavy at times. Temperature rising to around 27 by 11pm. Windy, with a northwest wind 28 to 33 mph increasing to 36 to 41 mph. Winds could gust as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of 18 to 24 inches possible.

Christmas Day

Snow. The snow could be heavy at times. Temperature falling to around 22 by 9am. Windy, with a north wind 38 to 44 mph, with gusts as high as 70 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 24. Windy, with a south wind 28 to 32 mph, with gusts as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of 8 to 12 inches possible.

Friday

Snow. The snow could be heavy at times. High near 27. Windy, with a south southwest wind 26 to 31 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 49 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Friday Night

Snow likely, mainly before 10pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday

Mostly sunny, with a high near 26.

Saturday Night

Mostly clear, with a low around 18.

Sunday

Mostly sunny, with a high near 27.

Sunday Night

Mostly clear, with a low around 23.

Monday

Sunny, with a high near 30.

Monday Night

Mostly clear, with a low around 26.