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.

unknown precip

39°F

4°C

Humidity 55%
Wind Speed NNW 3 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 05 Mar 06:30 PM MST
Extended Forecast for

5 Miles SSE Greenough MT

  • Tonight

    Tonight: A chance of snow before 2am, then a slight chance of snow after 5am. Mostly cloudy, with a low around 28. West wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow after 2pm. Partly sunny, with a high near 37. West wind around 10 mph, with gusts as high as 26 mph. Little or no snow accumulation expected.

    High: 37 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 30. West wind 8 to 11 mph, with gusts as high as 24 mph.

    Low: 30 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A chance of snow before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 43. West southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. West southwest wind around 11 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain and snow before 11am, then a chance of rain. Snow level 6000 feet rising to 6600 feet in the afternoon. Partly sunny, with a high near 49. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain likely before 2am, then a chance of snow. Mostly cloudy, with a low around 36. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain Likely
    then Chance
    Rain/Snow

  • Monday

    Monday: Snow likely. Mostly cloudy, with a high near 41.

    High: 41 °F

    Snow Likely

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow

Detailed Forecast

Tonight
A chance of snow before 2am, then a slight chance of snow after 5am. Mostly cloudy, with a low around 28. West wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Friday
A 30 percent chance of snow after 2pm. Partly sunny, with a high near 37. West wind around 10 mph, with gusts as high as 26 mph. Little or no snow accumulation expected.
Friday Night
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 30. West wind 8 to 11 mph, with gusts as high as 24 mph.
Saturday
A chance of snow before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 43. West southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 38. West southwest wind around 11 mph, with gusts as high as 25 mph.
Sunday
A slight chance of rain and snow before 11am, then a chance of rain. Snow level 6000 feet rising to 6600 feet in the afternoon. Partly sunny, with a high near 49. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday Night
Rain likely before 2am, then a chance of snow. Mostly cloudy, with a low around 36. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
Snow likely. Mostly cloudy, with a high near 41.
Monday Night
A chance of snow. Mostly cloudy, with a low around 25.
Tuesday
Snow likely. Mostly cloudy, with a high near 31.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 22.
Wednesday
Snow likely. Partly sunny, with a high near 37.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 30.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Greenough MT
 46.84°N 113.4°W (Elev. 5863 ft)
Last Update:
1:00 pm MST Mar 5, 2026
Forecast Valid:
6pm MST Mar 5, 2026-6pm MDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation