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

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

36°F

2°C

Humidity 39%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 08 Apr 04:45 AM MDT
Extended Forecast for

Greenough MT

  • Today

    Today: Sunny, with a high near 57. Calm wind becoming west around 6 mph in the afternoon.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 29. West wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 60. Calm wind.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 68. Calm wind.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 68. Chance of precipitation is 50%.

    High: 68 °F

    Slight Chance
    Rain then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Rain Likely

  • Sunday

    Sunday: A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then rain likely after noon. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance
    Rain/Snow
    then Rain
    Likely

Detailed Forecast

Today
Sunny, with a high near 57. Calm wind becoming west around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 29. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 60. Calm wind.
Thursday Night
Mostly clear, with a low around 28. Calm wind.
Friday
Mostly sunny, with a high near 68. Calm wind.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 68. Chance of precipitation is 50%.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 36.
Sunday
A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then rain likely after noon. Mostly cloudy, with a high near 53.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 31.
Monday
Rain and snow likely. Mostly cloudy, with a high near 49.
Monday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 54.
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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:
4:36 am MDT Apr 8, 2026
Forecast Valid:
5am MDT Apr 8, 2026-6pm MDT Apr 14, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation