Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

Lat: 46.71854°NLon: 113.29534°WElev: 3901.0ft.

NA

24°F

-4°C

Humidity 53%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 9°F (-13°C)
Visibility NA
Last update 29 Dec 02:01 AM MST
Extended Forecast for

5 Miles SSE Greenough MT

  • Overnight

    Overnight: Partly cloudy, with a low around 15. Light west southwest wind.

    Low: 15 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 27. Light west wind.

    High: 27 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. Light west southwest wind.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31. Calm wind.

    High: 31 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 15. Light west southwest wind.
Monday
Sunny, with a high near 27. Light west wind.
Monday Night
Mostly cloudy, with a low around 21. Light west southwest wind.
Tuesday
Mostly sunny, with a high near 31. Calm wind.
Tuesday Night
Partly cloudy, with a low around 24. Calm wind.
Wednesday
Sunny, with a high near 35.
Wednesday Night
Partly cloudy, with a low around 25.
New Year's Day
Mostly cloudy, with a high near 34.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
A slight chance of snow after 11am, mixing with rain after 2pm. Mostly cloudy, with a high near 35.
Friday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 29.
Saturday
A chance of snow. Mostly cloudy, with a high near 35.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Greenough MT
 46.84°N 113.4°W (Elev. 5863 ft)
1:02 am MST Dec 29, 2025
2am MST Dec 29, 2025-6pm MST Jan 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