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

Hazardous Weather Conditions

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

29°F

-2°C

Humidity 82%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 16 Apr 05:15 AM MDT
Extended Forecast for

Greenough MT

Winter Weather Advisory until April 16, 09:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until April 16, 09:00am

    NOW until 9:00am Thu

    Winter Weather Advisory

  • Overnight

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of snow before noon, then snow showers likely, mainly after 5pm. Some thunder is also possible. Partly sunny, with a high near 41. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance Snow
    then Snow
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 23. West northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Chance Snow
    then Slight
    Chance Snow

  • Friday

    Friday: A 50 percent chance of snow. Patchy fog before 8am. Otherwise, partly sunny, with a high near 45. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph. Little or no snow accumulation expected.

    High: 45 °F

    Chance Snow
    and Patchy
    Fog

  • Friday Night

    Friday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 20. West northwest wind around 6 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 8am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Areas Fog
    then Mostly
    Sunny

  • Saturday Night

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

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 22. Calm wind.
Thursday
A chance of snow before noon, then snow showers likely, mainly after 5pm. Some thunder is also possible. Partly sunny, with a high near 41. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 23. West northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph. New snow accumulation of less than one inch possible.
Friday
A 50 percent chance of snow. Patchy fog before 8am. Otherwise, partly sunny, with a high near 45. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph. Little or no snow accumulation expected.
Friday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 20. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Areas of fog before 8am. Otherwise, sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 71.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A chance of rain. Mostly cloudy, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenough MT
 46.92°N 113.45°W (Elev. 3783 ft)
Last Update:
2:00 am MDT Apr 16, 2026
Forecast Valid:
5am MDT Apr 16, 2026-6pm MDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation