Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Current conditions at

Butte, Bert Mooney Airport (KBTM)

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

Clear

28°F

-2°C

Humidity	92%
Wind Speed	N 0 MPH
Barometer	29.87 in (1011.51 mb)
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Last update	24 Dec 02:05 AM MST

More Information:

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

Extended Forecast for

11 Miles WNW Silver Star MT

Overnight
Low: 29 °F
Mostly Cloudy
Wednesday
High: 32 °F
Mostly Sunny
Wednesday Night
Low: 28 °F
Heavy Snow
Christmas Day
High: 30 °F
Chance Snow
then Slight
Chance Snow
Thursday Night
Low: 24 °F
Chance Snow
Friday
High: 26 °F
Chance Snow
and Breezy
Friday Night
Low: 15 °F
Chance Snow
and Breezy
Saturday
High: 17 °F
Breezy.
Slight Chance
Snow then
Partly Sunny
Saturday Night
Low: 8 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly cloudy, with a low around 29. South southwest wind around 16 mph, with gusts as high as 22 mph.

Wednesday

Mostly sunny, with a high near 32. South wind 16 to 18 mph, with gusts as high as 32 mph.

Wednesday Night

Snow likely, mainly before 2am. The snow could be heavy at times. Cloudy, with a low around 28. South southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

Christmas Day

A 50 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 30. Southwest wind 10 to 13 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.

Thursday Night

A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 24. Southwest wind 14 to 17 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.

Friday

A 40 percent chance of snow. Partly sunny, with a high near 26. Breezy. New snow accumulation of less than a half inch possible.

Friday Night

A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 15. Breezy. Little or no snow accumulation expected.

Saturday

A slight chance of snow before 11am. Partly sunny, with a high near 17. Breezy.

Saturday Night

Partly cloudy, with a low around 8.

Sunday

Partly sunny, with a high near 17.

Sunday Night

Partly cloudy, with a low around 12.