Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Butte, Bert Mooney Airport (KBTM)

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

Overcast

34°F

1°C

Humidity	55%
Wind Speed	WSW 9 MPH
Barometer	29.49 in (998.65 mb)
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Wind Chill	27°F (-3°C)
Last update	27 Dec 03:20 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

Wind Advisory until December 27, 05:00am

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

Click here for hazard details and duration

Wind Advisory

Winter Weather Advisory

Wind Advisory until December 27, 05:00am
NOW until 5:00am Sat
Wind Advisory
Overnight
Low: 7 °F
Heavy Snow
and Blowing
Snow
Saturday
High: 11 °F⇓
Chance Snow
and Blowing
Snow
Saturday Night
Low: -1 °F
Partly Cloudy
Sunday
High: 10 °F
Cold
Sunday Night
Low: 8 °F
Mostly Clear
Monday
High: 20 °F
Mostly Sunny
Monday Night
Low: 17 °F
Mostly Cloudy
Tuesday
High: 23 °F
Partly Sunny

Detailed Forecast

Overnight

Snow likely, mainly after 5am. The snow could be heavy at times. Widespread blowing snow. Mostly cloudy, with a low around 7. Wind chill values as low as -11. Windy, with a west southwest wind around 34 mph, with gusts as high as 55 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.

Saturday

A chance of snow before 3pm, then a slight chance of snow after 4pm. Widespread blowing snow, mainly before 11am. Partly sunny, with a temperature rising to near 11 by 11am, then falling to around 4 during the remainder of the day. Wind chill values as low as -16. Windy, with a west northwest wind 29 to 34 mph decreasing to 17 to 22 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

Saturday Night

Partly cloudy, with a low around -1. Wind chill values as low as -22. West wind 13 to 17 mph, with gusts as high as 28 mph.

Sunday

Sunny and cold, with a high near 10. Wind chill values as low as -18. West southwest wind 9 to 13 mph.

Sunday Night

Mostly clear, with a low around 8. West southwest wind 9 to 13 mph.

Monday

Mostly sunny, with a high near 20.

Monday Night

Mostly cloudy, with a low around 17.

Tuesday

Partly sunny, with a high near 23.