Major Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold in the North-Central U.S.

A large, long-duration winter storm is expected to bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies/Plains into the Mid-South beginning Friday, spreading eastward to the Mid-Atlantic and New England this weekend. An Arctic front will bring frigid temperatures and gusty winds that will lead to dangerous wind chills from the Northern Plains and Upper Midwest. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

24°F

-4°C

Humidity	47%
Wind Speed	E 13 MPH
Barometer	NA
Dewpoint	6°F (-14°C)
Visibility	NA
Wind Chill	12°F (-11°C)
Last update	22 Jan 03:00 PM MST

More Information:

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

Extended Forecast for

12 Miles W Marysville MT

Tonight
Low: -4 °F
Windy. Mostly
Cloudy then
Chance Snow
Friday
High: 2 °F
Cold
Friday Night
Low: -2 °F
Increasing
Clouds
Saturday
High: 7 °F
Chance Snow
Saturday Night
Low: 1 °F
Chance Snow
Sunday
High: 15 °F
Mostly Sunny
Sunday Night
Low: 11 °F
Partly Cloudy
and Breezy
Monday
High: 21 °F
Mostly Sunny
and Breezy
Monday Night
Low: 16 °F
Mostly Cloudy
and Breezy

Detailed Forecast

Tonight

A 30 percent chance of snow, mainly after 3am. Mostly cloudy, with a low around -4. Wind chill values as low as -30. Windy, with an east northeast wind 28 to 31 mph, with gusts as high as 55 mph. Little or no snow accumulation expected.

Friday

Mostly cloudy, then gradually becoming sunny and cold, with a high near 2. Wind chill values as low as -28. Northeast wind 11 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph.

Friday Night

Increasing clouds, with a low around -2. Wind chill values as low as -21. West wind 11 to 14 mph.

Saturday

A 30 percent chance of snow. Partly sunny and cold, with a high near 7. Wind chill values as low as -19. West northwest wind around 15 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.

Saturday Night

A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 1. West wind around 17 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.

Sunday

Mostly sunny, with a high near 15.

Sunday Night

Partly cloudy, with a low around 11. Breezy.

Monday

Mostly sunny, with a high near 21. Breezy.

Monday Night

Mostly cloudy, with a low around 16. Breezy.

Tuesday

Mostly cloudy, with a high near 22. Breezy.

Tuesday Night

Mostly cloudy, with a low around 17. Breezy.