Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

60°F

16°C

Humidity 23%
Wind Speed WNW 9 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 08 Apr 05:30 PM MDT
Extended Forecast for

Greenough MT

  • Tonight

    Tonight: Mostly clear, with a low around 29. West northwest wind around 6 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 37. Light north wind.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 69. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Slight Chance
    Rain then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 37. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after noon.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely before 3am, then a chance of rain and snow.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Rain Likely
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 29. West northwest wind around 6 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 37. Light north wind.
Saturday
A slight chance of rain, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 69. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 37. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain likely, mainly after noon. Mostly cloudy, with a high near 54.
Sunday Night
Rain likely before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 32.
Monday
Rain and snow likely before 3pm, then a chance of rain. Mostly cloudy, with a high near 49.
Monday Night
A chance of rain. Snow level 5500 feet lowering to 4700 feet after midnight . Mostly cloudy, with a low around 29.
Tuesday
A slight chance of rain and snow. Snow level 4500 feet rising to 5500 feet in the afternoon. Partly sunny, with a high near 52.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
A chance of rain. Snow level 4700 feet rising to 5800 feet in the afternoon. Partly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Greenough MT
 46.92°N 113.45°W (Elev. 3783 ft)
2:00 pm MDT Apr 8, 2026
5pm MDT Apr 8, 2026-6pm MDT Apr 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database