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

Winter Weather Advisory in effect from December 27, 05:00 AM MST until December 27, 08:00 PM MST

Current conditions at

Butte, Bert Mooney Airport (KBTM)

Lat: 45.95472°NLon: 112.4975°WElev: 5545.0ft.

Clear

46°F

8°C

Humidity	49%
Wind Speed	N 0 MPH
Barometer	29.74 in (1007.11 mb)
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Last update	25 Dec 01:35 PM MST

More Information:

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

Extended Forecast for

4 Miles SSE Butte MT

Winter Weather Advisory December 27, 05:00am until December 27, 08:00pm

Click here for hazard details and duration

Winter Weather Advisory

Christmas Day
High: 46 °F
Partly Sunny
Tonight
Low: 30 °F
Chance
Rain/Snow
Friday
High: 41 °F
Chance Snow
and Breezy
Friday Night
Low: 20 °F
Chance Snow
Saturday
High: 26 °F
Chance Snow
Saturday Night
Low: 4 °F
Partly Cloudy
Sunday
High: 24 °F
Mostly Sunny
Sunday Night
Low: 9 °F
Mostly Clear
Monday
High: 33 °F
Mostly Sunny

Detailed Forecast

Christmas Day

Partly sunny, with a high near 46. South wind around 8 mph.

Tonight

A chance of rain and snow, mainly before 1am. Snow level 6300 feet lowering to 5500 feet after midnight . Mostly cloudy, with a low around 30. South southeast wind around 7 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

Friday

A 30 percent chance of snow, mainly before noon. Mostly sunny, with a high near 41. Breezy, with a west southwest wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph. Little or no snow accumulation expected.

Friday Night

A 40 percent chance of snow after 11pm. Mostly cloudy, with a low around 20. Southwest wind 16 to 18 mph, with gusts as high as 38 mph. New snow accumulation of less than one inch possible.

Saturday

A 50 percent chance of snow. Partly sunny, with a high near 26. West wind 15 to 18 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a low around 4.

Sunday

Mostly sunny, with a high near 24.

Sunday Night

Mostly clear, with a low around 9.

Monday

Mostly sunny, with a high near 33.

Monday Night

Mostly cloudy, with a low around 20.

Tuesday

Mostly cloudy, with a high near 39.