Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

unknown precip

9°F

-13°C

Humidity	84%
Wind Speed	NW 5 MPH
Barometer	NA
Dewpoint	5°F (-15°C)
Visibility	NA
Wind Chill	0°F (-18°C)
Last update	27 Dec 10:00 PM MST

More Information:

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

Extended Forecast for

12 Miles NE Big Sky MT

Tonight
Low: 2 °F
Chance Snow
then Partly
Cloudy
Sunday
High: 20 °F
Sunny
Sunday Night
Low: 8 °F
Mostly Clear
Monday
High: 34 °F
Mostly Sunny
Monday Night
Low: 18 °F
Partly Cloudy
Tuesday
High: 38 °F
Mostly Sunny
Tuesday Night
Low: 22 °F
Partly Cloudy
Wednesday
High: 43 °F
Mostly Sunny
Wednesday Night
Low: 25 °F
Partly Cloudy

Detailed Forecast

Tonight

A 30 percent chance of snow before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 2. Calm wind becoming northwest around 5 mph after midnight. Total nighttime snow accumulation of less than one inch possible.

Sunday

Sunny, with a high near 20. Wind chill values as low as -5. South southwest wind around 6 mph.

Sunday Night

Mostly clear, with a low around 8. South wind 5 to 7 mph.

Monday

Mostly sunny, with a high near 34. South wind 5 to 7 mph.

Monday Night

Partly cloudy, with a low around 18. South southwest wind around 5 mph.

Tuesday

Mostly sunny, with a high near 38. Light southwest wind.

Tuesday Night

Partly cloudy, with a low around 22. South southwest wind 3 to 5 mph.