National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Gary Cooper Bridge I-15 MP 242 (MTYEP)

Lat: 47.13948°NLon: 111.85908°WElev: 3427.0ft.

NA

1°F

-17°C

Humidity 81%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint -4°F (-20°C)
Visibility NA
Wind Chill-9°F (-23°C)
Last update 28 Dec 01:00 AM MST
Extended Forecast for

4 Miles WSW Cascade MT

  • Overnight

    Overnight: Mostly clear, with a low around -6. Wind chill values as low as -20. South southwest wind 5 to 8 mph.

    Low: -6 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 24. Wind chill values as low as -20. Southwest wind 11 to 20 mph, with gusts as high as 28 mph.

    High: 24 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a temperature rising to around 27 by 5am. Breezy, with a southwest wind 20 to 26 mph, with gusts as high as 37 mph.

    Low: 22 °F⇑

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 35. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 36 mph.

    High: 35 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31. Breezy, with a south southwest wind 15 to 22 mph, with gusts as high as 31 mph.

    Low: 31 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. South southwest wind around 16 mph, with gusts as high as 23 mph.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. South southwest wind 16 to 21 mph, with gusts as high as 28 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 47. South southwest wind 14 to 21 mph, with gusts as high as 26 mph.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around -6. Wind chill values as low as -20. South southwest wind 5 to 8 mph.
Sunday
Sunny, with a high near 24. Wind chill values as low as -20. Southwest wind 11 to 20 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a temperature rising to around 27 by 5am. Breezy, with a southwest wind 20 to 26 mph, with gusts as high as 37 mph.
Monday
Mostly sunny, with a high near 35. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 36 mph.
Monday Night
Mostly cloudy, with a low around 31. Breezy, with a south southwest wind 15 to 22 mph, with gusts as high as 31 mph.
Tuesday
Mostly sunny, with a high near 41. South southwest wind around 16 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 34. South southwest wind 16 to 21 mph, with gusts as high as 28 mph.
Wednesday
Partly sunny, with a high near 47. South southwest wind 14 to 21 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 34.
New Year's Day
Partly sunny, with a high near 46.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 46.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Cascade MT
 47.24°N 111.79°W (Elev. 4747 ft)
Last Update:
1:02 am MST Dec 28, 2025
Forecast Valid:
1am MST Dec 28, 2025-6pm MST Jan 3, 2026
 
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