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

SHENANGO (SGOM8)

Lat: 45.45964°NLon: 111.24447°WElev: 5391.0ft.

40°F

4°C

Humidity	93%
Wind Speed	SE 0 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	25 Dec 05:39 AM MST

More Information:

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

Extended Forecast for

10 Miles SSE Gallatin Gateway MT

Christmas Day
High: 34 °F
Chance Snow
Tonight
Low: 25 °F
Chance Snow
Friday
High: 29 °F
Snow Likely
Friday Night
Low: 13 °F
Chance Snow
Saturday
High: 17 °F
Snow
Saturday Night
Low: -2 °F
Slight Chance
Snow then
Partly Cloudy
Sunday
High: 15 °F
Mostly Sunny
Sunday Night
Low: 6 °F
Partly Cloudy
Monday
High: 24 °F
Mostly Sunny

Detailed Forecast

Christmas Day

A 40 percent chance of snow, mainly before 8am. Partly sunny, with a high near 34. South southwest wind around 14 mph, with gusts as high as 26 mph. Total daytime snow accumulation of less than a half inch possible.

Tonight

A 50 percent chance of snow. Mostly cloudy, with a low around 25. South southwest wind around 16 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.

Friday

Snow likely. Mostly cloudy, with a high near 29. Southwest wind 17 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Friday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 13. South southwest wind around 17 mph, with gusts as high as 31 mph. New snow accumulation of less than one inch possible.

Saturday

Snow. High near 17. West southwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Saturday Night

A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around -2. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.

Sunday

Mostly sunny, with a high near 15. South southwest wind around 7 mph.

Sunday Night

Partly cloudy, with a low around 6. South southwest wind 6 to 9 mph.

Monday

Mostly sunny, with a high near 24.

Monday Night

Mostly cloudy, with a low around 16.

Tuesday

Partly sunny, with a high near 30.