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

32°F

0°C

Humidity	NA
Wind Speed	NNW 0 MPH
Barometer	NA
Dewpoint	NA
Visibility	NA
Last update	NA

More Information:

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

Detailed forecast for

Upper Blackfoot and MacDonald Pass

Today

Mostly sunny. Slight chance of rain, light freezing rain and snow early in the morning. Chance of rain and snow late in the afternoon. Highs 36 to 44. Southwest winds up to 10 mph with gusts to around 25 mph. Chance of precipitation 40 percent.

Tonight

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

Friday

Snow likely. Snow accumulation up to 1 inch. Highs 32 to 40. Southwest winds 5 to 15 mph with gusts to around 35 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.