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

Logan Pass Visitors Center (LGPVC)

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

NA

N/A

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

9 Miles WSW St Mary MT

Cold Weather Advisory December 27, 12:52pm until December 28, 05:00am
Winter Weather Advisory December 27, 12:52pm until December 27, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Weather Advisory
  •  
    Cold Weather Advisory December 27, 12:52pm until December 28, 05:00am
    Winter Weather Advisory December 27, 12:52pm until December 27, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 7 °F

    Chance Snow

  • Tonight

    Tonight: Partly cloudy, with a temperature rising to around 0 by 4am. Wind chill values as low as -20. West wind 7 to 17 mph, with gusts as high as 24 mph.

    Low: -6 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 19. Wind chill values as low as -25. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 31 mph.

    High: 19 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 14. Wind chill values as low as -5. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 31 mph.

    Low: 14 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 26. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 31 mph.

    High: 26 °F

    Partly Sunny
    and Breezy
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 20. West southwest wind 13 to 15 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. West southwest wind around 14 mph, with gusts as high as 23 mph.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly between 1pm and 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 7. Wind chill values as low as -25. North northeast wind 8 to 14 mph, with gusts as high as 20 mph. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
Partly cloudy, with a temperature rising to around 0 by 4am. Wind chill values as low as -20. West wind 7 to 17 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 19. Wind chill values as low as -25. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 31 mph.
Sunday Night
Partly cloudy, with a low around 14. Wind chill values as low as -5. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 31 mph.
Monday
Partly sunny, with a high near 26. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 31 mph.
Monday Night
Mostly cloudy, with a low around 20. West southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Tuesday
Partly sunny, with a high near 32. West southwest wind around 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 25. West southwest wind 11 to 13 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of snow. Mostly cloudy, with a high near 33.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 23.
New Year's Day
A slight chance of snow. Mostly cloudy, with a high near 37.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 26.
Friday
A chance of snow. Mostly cloudy, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WSW St Mary MT
 48.68°N 113.62°W (Elev. 5259 ft)
10:37 am MST Dec 27, 2025
12pm MST Dec 27, 2025-6pm MST Jan 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database