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 87%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 09 Mar 04:45 AM MDT
Extended Forecast for

11 Miles SE Greenough MT

  • Overnight

    Overnight: A 40 percent chance of snow. Mostly cloudy, with a steady temperature around 31. West wind around 20 mph, with gusts as high as 44 mph. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 31 °F

    Chance Snow

  • Monday

    Monday: A chance of snow before 8am, then a chance of snow after noon. Partly sunny, with a high near 31. West wind 18 to 21 mph, with gusts as high as 46 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow after 5am. Partly cloudy, with a low around 19. West wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 37 mph.

    Low: 19 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Snow. High near 28. West wind 8 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 28 °F

    Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 17. Southwest wind 7 to 15 mph, with gusts as high as 32 mph.

    Low: 17 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 36. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: Snow. Low around 34. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 34 °F

    Snow

  • Thursday

    Thursday: Snow. Cloudy, with a high near 38.

    High: 38 °F

    Snow

  • Thursday Night

    Thursday Night: Snow. Cloudy, with a low around 33.

    Low: 33 °F

    Snow

Detailed Forecast

Overnight
A 40 percent chance of snow. Mostly cloudy, with a steady temperature around 31. West wind around 20 mph, with gusts as high as 44 mph. Total nighttime snow accumulation of 1 to 3 inches possible.
Monday
A chance of snow before 8am, then a chance of snow after noon. Partly sunny, with a high near 31. West wind 18 to 21 mph, with gusts as high as 46 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday Night
A 20 percent chance of snow after 5am. Partly cloudy, with a low around 19. West wind 13 to 18 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 37 mph.
Tuesday
Snow. High near 28. West wind 8 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
Partly cloudy, with a low around 17. Southwest wind 7 to 15 mph, with gusts as high as 32 mph.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 36. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow. Low around 34. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow. Cloudy, with a high near 38.
Thursday Night
Snow. Cloudy, with a low around 33.
Friday
Snow. Cloudy, with a high near 39.
Friday Night
Snow. Cloudy, with a low around 34.
Saturday
Snow. Cloudy, with a high near 39.
Saturday Night
Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 24.
Sunday
Snow likely. Mostly cloudy, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Greenough MT
 46.79°N 113.26°W (Elev. 5600 ft)
Last Update:
2:01 am MDT Mar 9, 2026
Forecast Valid:
5am MDT Mar 9, 2026-6pm MDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation