Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

NA

34°F

1°C

Humidity 66%
Wind Speed WNW 3 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 29 Jan 03:00 AM MST
Extended Forecast for

12 Miles W Marysville MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 20. Breezy, with a west wind around 25 mph, with gusts as high as 29 mph.

    Low: 20 °F

    Mostly Cloudy
    and Breezy

  • Thursday

    Thursday: Mostly cloudy, with a high near 25. Breezy, with a west wind around 25 mph, with gusts as high as 32 mph.

    High: 25 °F

    Mostly Cloudy
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23. Breezy, with a west wind around 24 mph, with gusts as high as 28 mph.

    Low: 23 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: A 20 percent chance of snow after 11am.  Mostly cloudy, with a high near 29. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 30 mph.

    High: 29 °F

    Slight Chance
    Snow and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27. Windy, with a west southwest wind 21 to 26 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 36 mph.

    Low: 27 °F

    Mostly Cloudy
    and Windy

  • Saturday

    Saturday: Partly sunny, with a high near 32. Windy.

    High: 32 °F

    Partly Sunny
    and Windy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 20. Breezy, with a west wind around 25 mph, with gusts as high as 29 mph.
Thursday
Mostly cloudy, with a high near 25. Breezy, with a west wind around 25 mph, with gusts as high as 32 mph.
Thursday Night
Mostly cloudy, with a low around 23. Breezy, with a west wind around 24 mph, with gusts as high as 28 mph.
Friday
A 20 percent chance of snow after 11am. Mostly cloudy, with a high near 29. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 27. Windy, with a west southwest wind 21 to 26 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 36 mph.
Saturday
Partly sunny, with a high near 32. Windy.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
A chance of snow, mainly after 11am. Partly sunny, with a high near 27. Breezy.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 21. Breezy.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Marysville MT
 46.77°N 112.54°W (Elev. 8199 ft)
2:06 am MST Jan 29, 2026
3am MST Jan 29, 2026-6pm MST Feb 4, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database