Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

14°F

-10°C

Humidity 61%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 3°F (-16°C)
Visibility NA
Last update 23 Jan 02:45 AM MST
Extended Forecast for

5 Miles SSE Greenough MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 7. Wind chill values as low as -8. East wind around 11 mph, with gusts as high as 20 mph.

    Low: 7 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 14. Wind chill values as low as -8. East wind 5 to 8 mph becoming calm  in the afternoon.

    High: 14 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 8. Calm wind.

    Low: 8 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 20. West northwest wind 3 to 5 mph.

    High: 20 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 8. West northwest wind around 6 mph.

    Low: 8 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 24.

    High: 24 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 7. Wind chill values as low as -8. East wind around 11 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 14. Wind chill values as low as -8. East wind 5 to 8 mph becoming calm in the afternoon.
Friday Night
Increasing clouds, with a low around 8. Calm wind.
Saturday
Partly sunny, with a high near 20. West northwest wind 3 to 5 mph.
Saturday Night
Mostly cloudy, with a low around 8. West northwest wind around 6 mph.
Sunday
Sunny, with a high near 24.
Sunday Night
Mostly clear, with a low around 16.
Monday
Mostly sunny, with a high near 32.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Greenough MT
 46.84°N 113.4°W (Elev. 5863 ft)
2:06 am MST Jan 23, 2026
3am MST Jan 23, 2026-6pm MST Jan 29, 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