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

Current conditions at

Logan Pass Visitors Center (LGPVC)

Lat: 48.6949°NLon: 113.7169°WElev: 6775.0ft.

N/A

Humidity	87%
Wind Speed	W 19 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	22 Dec 01:00 PM MST

More Information:

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

Extended Forecast for

9 Miles SW St Mary MT

Cold Weather Advisory December 27, 12:53pm until December 28, 05:00am

Winter Weather Advisory December 27, 12:53pm until December 27, 06:00pm

Click here for hazard details and duration

Cold Weather Advisory

Winter Weather Advisory

Cold Weather Advisory December 27, 12:53pm until December 28, 05:00am
Winter Weather Advisory December 27, 12:53pm until December 27, 06:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: -9 °F
Chance Snow
Tonight
Low: -10 °F⇑
Partly Cloudy
Sunday
High: 10 °F
Mostly Sunny
then Sunny
and Breezy
Sunday Night
Low: 8 °F
Partly Cloudy
and Windy
Monday
High: 16 °F
Partly Sunny
and Windy
Monday Night
Low: 15 °F
Mostly Cloudy
and Breezy
Tuesday
High: 23 °F
Partly Sunny
and Breezy
then Mostly
Sunny
Tuesday Night
Low: 20 °F
Mostly Cloudy
and Breezy

Detailed Forecast

This Afternoon

A 30 percent chance of snow, mainly before 2pm. Mostly cloudy, then gradually becoming sunny and cold, with a steady temperature around -9. Wind chill values as low as -30. North northeast wind 9 to 15 mph becoming northwest. Winds could gust as high as 21 mph. Total daytime snow accumulation of 2 to 4 inches possible.

Tonight

Partly cloudy, with a temperature falling to near -10 by 8pm, then rising to around -3 during the remainder of the night. Wind chill values as low as -30. West southwest wind 8 to 17 mph, with gusts as high as 24 mph.

Sunday

Mostly sunny, with a high near 10. Wind chill values as low as -30. Breezy, with a west southwest wind 20 to 25 mph, with gusts as high as 36 mph.

Sunday Night

Partly cloudy, with a low around 8. Wind chill values as low as -15. Windy, with a west southwest wind 26 to 30 mph, with gusts as high as 41 mph.

Monday

Partly sunny, with a high near 16. Windy, with a west southwest wind 23 to 30 mph, with gusts as high as 41 mph.

Monday Night

Mostly cloudy, with a low around 15. Breezy, with a west southwest wind around 25 mph, with gusts as high as 31 mph.

Tuesday

Partly sunny, with a high near 23. Breezy, with a west southwest wind 21 to 24 mph, with gusts as high as 28 mph.

Tuesday Night

Mostly cloudy, with a low around 20. Breezy, with a west southwest wind around 23 mph.