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

Montague Siskiyou County Airport (KSIY)

Lat: 41.77375°NLon: 122.46817°WElev: 2644.0ft.

Rain

43°F

6°C

Humidity	81%
Wind Speed	N 0 MPH
Barometer	29.51 in (999.32 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	24 Dec 10:35 PM PST

More Information:

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

Extended Forecast for

10 Miles W Macdoel CA

Wind Advisory December 25, 01:00am until December 25, 01:00pm

Winter Storm Warning December 24, 10:57pm until December 26, 10:00am

Click here for hazard details and duration

Wind Advisory

Winter Storm Warning

Winter Storm Warning December 24, 10:57pm until December 26, 10:00am
NOW until 10:00am Fri
Winter Storm Warning
Tonight
Low: 28 °F
Heavy Snow
Christmas Day
High: 32 °F
Heavy Snow
and Windy
Thursday Night
Low: 28 °F
Snow
Friday
High: 31 °F
Snow
Friday Night
Low: 25 °F
Chance Snow
then Mostly
Cloudy
Saturday
High: 28 °F
Mostly Sunny
Saturday Night
Low: 19 °F
Partly Cloudy
Sunday
High: 31 °F
Mostly Sunny

Detailed Forecast

Tonight

Snow. The snow could be heavy at times. Low around 28. South southeast wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 2 to 4 inches possible.

Christmas Day

Snow. The snow could be heavy at times. High near 32. Windy, with a south wind 24 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

Thursday Night

Snow. Steady temperature around 28. South southwest wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Friday

Snow, mainly before 4pm. High near 31. South southwest wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Friday Night

A 50 percent chance of snow before 10pm. Mostly cloudy, with a low around 25. West wind around 9 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.

Saturday

Mostly sunny, with a high near 28.

Saturday Night

Partly cloudy, with a low around 19.

Sunday

Mostly sunny, with a high near 31.

Sunday Night

Mostly clear, with a low around 23.

Monday

Sunny, with a high near 35.

Monday Night

Mostly clear, with a low around 25.