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

67°F

19°C

Humidity 29%
Wind Speed SE 2 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 07 Oct 03:45 PM MDT
Extended Forecast for

5 Miles SSE Greenough MT

  • Tonight

    Tonight: Mostly clear, with a low around 42. Light and variable wind.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64. Light south wind.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Calm wind becoming east southeast around 6 mph after midnight.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66. East wind around 6 mph.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. East wind around 6 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: Rain likely, mainly before noon. Mostly cloudy, with a high near 49.

    High: 49 °F

    Rain Likely

  • Saturday Night

    Saturday Night: A chance of rain before 9pm, then rain and snow likely between 9pm and 3am, then snow likely after 3am. Snow level 6700 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 34.

    Low: 34 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Light and variable wind.
Wednesday
Sunny, with a high near 64. Light south wind.
Wednesday Night
Mostly clear, with a low around 45. Calm wind becoming east southeast around 6 mph after midnight.
Thursday
Sunny, with a high near 66. East wind around 6 mph.
Thursday Night
Mostly clear, with a low around 44. East wind around 6 mph.
Friday
Sunny, with a high near 68.
Friday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain likely, mainly before noon. Mostly cloudy, with a high near 49.
Saturday Night
A chance of rain before 9pm, then rain and snow likely between 9pm and 3am, then snow likely after 3am. Snow level 6700 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 34.
Sunday
Snow likely. Mostly cloudy, with a high near 41.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 31.
Columbus Day
A chance of snow. Partly sunny, with a high near 42.
Monday Night
A slight chance of snow. Partly cloudy, with a low around 30.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 45.
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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. 5861 ft)
Last Update:
2:30 pm MDT Oct 7, 2025
Forecast Valid:
4pm MDT Oct 7, 2025-6pm MDT Oct 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation