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 >

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

Garrison I-90 MP 174.4 (MTGAR)

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

26°F

-3°C

Humidity	77%
Wind Speed	WNW 7 MPH
Barometer	NA
Dewpoint	20°F (-7°C)
Visibility	NA
Wind Chill	18°F (-8°C)
Last update	27 Dec 06:30 AM MST

More Information:

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

Extended Forecast for

6 Miles E Elliston MT

Winter Weather Advisory until December 27, 08:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until December 27, 08:00pm
NOW until 8:00pm Sat
Winter Weather Advisory
Today
High: 20 °F⇓
Snow Likely
and Blowing
Snow
Tonight
Low: 2 °F
Slight Chance
Snow then
Partly Cloudy
Sunday
High: 16 °F
Sunny
Sunday Night
Low: 13 °F
Mostly Clear
Monday
High: 27 °F
Mostly Sunny
Monday Night
Low: 20 °F
Mostly Cloudy
Tuesday
High: 32 °F
Partly Sunny
Tuesday Night
Low: 24 °F
Mostly Cloudy

Detailed Forecast

Today

Snow likely, mainly before 3pm. Widespread blowing snow, mainly between 1pm and 2pm. Mostly cloudy, with a temperature falling to around 5 by 5pm. Wind chill values as low as -12. Breezy, with a northwest wind 23 to 28 mph decreasing to 16 to 21 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

A 10 percent chance of snow before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 2. Wind chill values as low as -14. North northwest wind 6 to 13 mph becoming west after midnight.

Sunday

Sunny, with a high near 16. Wind chill values as low as -11. West wind 10 to 13 mph, with gusts as high as 21 mph.

Sunday Night

Mostly clear, with a low around 13. Wind chill values as low as -1. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.

Monday

Mostly sunny, with a high near 27. West southwest wind 10 to 13 mph, with gusts as high as 21 mph.

Monday Night

Mostly cloudy, with a low around 20.

Tuesday

Partly sunny, with a high near 32.

Tuesday Night

Mostly cloudy, with a low around 24.