Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

15°F

-9°C

Humidity 86%
Wind Speed W 5 MPH
Barometer NA
Dewpoint 12°F (-11°C)
Visibility NA
Wind Chill7°F (-14°C)
Last update 25 Jan 06:00 AM MST
Extended Forecast for

Greenough MT

  • Today

    Today: Patchy fog between 8am and 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 24. Calm wind.

    High: 24 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 0. Calm wind.

    Low: 0 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 33. Calm wind.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15. Calm wind.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. Calm wind.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 15.

    Low: 15 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog between 8am and 9am.  Otherwise, partly sunny, with a high near 37.

    High: 37 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog between midnight and 4am.  Otherwise, mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 10am.  Otherwise, partly sunny, with a high near 40.

    High: 40 °F

    Patchy Fog
    then Partly
    Sunny

Detailed Forecast

Today
Patchy fog between 8am and 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 24. Calm wind.
Tonight
Increasing clouds, with a low around 0. Calm wind.
Monday
Partly sunny, with a high near 33. Calm wind.
Monday Night
Mostly cloudy, with a low around 15. Calm wind.
Tuesday
Mostly sunny, with a high near 38. Calm wind.
Tuesday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 15.
Wednesday
Patchy fog between 8am and 9am. Otherwise, partly sunny, with a high near 37.
Wednesday Night
Patchy fog between midnight and 4am. Otherwise, mostly cloudy, with a low around 18.
Thursday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 40.
Thursday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 22.
Friday
A slight chance of rain and snow. Areas of fog. Snow level 4400 feet rising to 5300 feet in the afternoon. Otherwise, mostly cloudy, with a high near 40.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 25.
Saturday
Patchy fog. Otherwise, partly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
Greenough MT
 46.92°N 113.45°W (Elev. 3783 ft)
2:06 am MST Jan 25, 2026
6am MST Jan 25, 2026-6pm MST Jan 31, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database