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

45°F

7°C

Humidity	81%
Wind Speed	SE 31 MPH
Barometer	29.41 in (995.94 mb)
Dewpoint	39°F (4°C)
Visibility	8.00 mi
Wind Chill	35°F (2°C)
Last update	25 Dec 04:35 AM PST

More Information:

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

Extended Forecast for

13 Miles NW Fort Jones CA

Wind Advisory until December 25, 01:00pm

Winter Storm Warning December 25, 04:47am 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, 04:47am until December 26, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 37 °F
Showers
Christmas Day
High: 47 °F
Showers
Likely then
Rain/Snow
Thursday Night
Low: 33 °F
Rain/Snow
Friday
High: 46 °F
Rain
Friday Night
Low: 28 °F
Chance Rain
then Mostly
Cloudy
Saturday
High: 43 °F
Mostly Sunny
Saturday Night
Low: 24 °F
Partly Cloudy
Sunday
High: 44 °F
Mostly Sunny

Detailed Forecast

Overnight

Showers. Low around 37. Southeast wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

Christmas Day

Rain, possibly mixed with snow showers before 4pm, then a chance of rain showers. Snow level 4300 feet. High near 47. South southeast wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Thursday Night

Rain and snow showers, becoming all rain after 5am. Snow level 3900 feet. Low around 33. Southeast wind around 6 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Friday

Showers likely before 10am, then rain, mainly between 10am and 4pm. Snow level 3800 feet. High near 46. South southwest wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night

A 50 percent chance of rain before 10pm. Snow level 3500 feet lowering to 2700 feet after midnight . Mostly cloudy, with a low around 28. West southwest wind around 5 mph becoming calm in the evening.

Saturday

Mostly sunny, with a high near 43.

Saturday Night

Partly cloudy, with a low around 24.

Sunday

Mostly sunny, with a high near 44.

Sunday Night

Mostly clear, with a low around 25.

Monday

Sunny, with a high near 48.

Monday Night

Mostly clear, with a low around 31.