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.

Overcast

41°F

5°C

Humidity	86%
Wind Speed	N 6 MPH
Barometer	29.47 in (997.97 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Wind Chill	37°F (3°C)
Last update	25 Dec 02:00 AM PST

More Information:

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

Extended Forecast for

5 Miles W Fort Jones CA

Wind Advisory until December 25, 01:00pm

Winter Storm Warning December 25, 02:16am until December 26, 10:00am

Click here for hazard details and duration

Wind Advisory

Winter Storm Warning

Wind Advisory until December 25, 01:00pm
Winter Storm Warning December 25, 02:16am until December 26, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 36 °F
Showers
Christmas Day
High: 42 °F
Showers
Thursday Night
Low: 30 °F
Rain/Snow
then
Rain/Snow
Likely
Friday
High: 42 °F
Rain/Snow
Friday Night
Low: 25 °F
Chance
Rain/Snow
then Mostly
Cloudy
Saturday
High: 38 °F
Mostly Sunny
Saturday Night
Low: 21 °F
Mostly Cloudy
Sunday
High: 39 °F
Mostly Sunny

Detailed Forecast

Overnight

Showers. Snow level 5500 feet. Steady temperature around 36. East wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Christmas Day

Showers, mainly before 2pm. Snow level 4300 feet. High near 42. South wind 11 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain and snow showers before 9pm, then rain showers between 9pm and midnight, then rain and snow showers likely after midnight. Snow level 3900 feet. Low around 30. Southeast wind 6 to 8 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Friday

Rain and snow showers before 1pm, then rain. Snow level 3900 feet. High near 42. South wind 5 to 8 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Friday Night

A chance of rain, mixing with snow after 7pm, then gradually ending. Snow level 3600 feet lowering to 3000 feet after midnight . Mostly cloudy, with a low around 25. West wind 3 to 5 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Saturday

Mostly sunny, with a high near 38.

Saturday Night

Mostly cloudy, with a low around 21.

Sunday

Mostly sunny, with a high near 39.

Sunday Night

Mostly clear, with a low around 23.

Monday

Sunny, with a high near 43.

Monday Night

Mostly clear, with a low around 26.