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 >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

Lat: 46.88748267° N Lon: 112.1111196° W Elev: 4199.0 ft.

unknown precip

45°F

7°C

Humidity	80%
Wind Speed	SE 10 MPH
Barometer	NA
Dewpoint	39°F (4°C)
Visibility	NA
Wind Chill	40°F (4°C)
Last update	25 Dec 11:15 AM MST

More Information:

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

Detailed forecast for

Upper Blackfoot and MacDonald Pass

Rest Of Today

Mostly sunny. Highs in the lower 40s. Southwest winds 5 to 15 mph with gusts to around 30 mph.

Tonight

Mostly cloudy. Chance of rain and snow in the evening, then chance of snow after midnight. Lows around 30. Southwest winds 5 to 10 mph with gusts to around 30 mph. Chance of precipitation 50 percent.

Friday

Breezy. Chance of snow in the morning, then snow likely in the afternoon. Snow accumulation up to 2 inches. Highs 32 to 40. Southwest winds 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Gusts up to 45 mph. Chance of snow 70 percent.

Friday Night

Colder. Chance of snow in the evening, then snow likely after midnight. Light snow accumulations. Lows 15 to 21. Southwest winds 10 to 15 mph with gusts to around 40 mph. Chance of snow 70 percent.

Saturday

Colder. Snow in the morning, then snow likely in the afternoon. Light snow accumulations. Highs 20 to 26. West winds 10 to 15 mph with gusts to around 35 mph. Chance of snow 90 percent.

Saturday Night

Colder. Mostly cloudy with a 20 percent chance of snow in the evening, then partly cloudy after midnight. Near steady temperature around 8.

Sunday And Sunday Night

Partly cloudy. Highs 17 to 23. Lows around 15.

Monday

Not as cold. Mostly sunny. Highs 25 to 33.

Monday Night Through Wednesday

Mostly cloudy. Lows in the mid 20s. Highs 30 to 40.