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

Fire Weather Issues; Pacific System Moving Inland

Dry fuels, strong winds and dry weather will continue to bring elevated to critical fire weather conditions to the areas of the Plains, Midwest and Southeast today. A Pacific storm system will bring low elevation rain and heavy high elevation mountain snow to California through early week, expanding into the Pacific Northwest, Great Basin, and southern California on Tuesday. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

54°F

12°C

Humidity 41%
Wind Speed ESE 2 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 20 Apr 10:00 AM MDT
Extended Forecast for

Greenough MT

  • Today

    Today: Sunny, with a high near 75. Light and variable wind.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Light and variable wind.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain, then showers and possibly a thunderstorm after noon. High near 61. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Chance Rain
    then Showers

  • Wednesday Night

    Wednesday Night: Rain. Low around 33. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Rain

  • Thursday

    Thursday: Rain and snow. Snow level 5000 feet lowering to 4200 feet in the afternoon . High near 46. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain and snow before midnight, then a chance of snow. Snow level 4600 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 23.

    Low: 23 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Friday

    Friday: A chance of snow. Partly sunny, with a high near 45.

    High: 45 °F

    Chance Snow

Detailed Forecast

Today
Sunny, with a high near 75. Light and variable wind.
Tonight
Partly cloudy, with a low around 38. Calm wind.
Tuesday
Mostly sunny, with a high near 82. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 41. Calm wind.
Wednesday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 61. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain. Low around 33. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain and snow. Snow level 5000 feet lowering to 4200 feet in the afternoon . High near 46. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
A chance of rain and snow before midnight, then a chance of snow. Snow level 4600 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 23.
Friday
A chance of snow. Partly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
A slight chance of rain and snow. Mostly sunny, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenough MT
 46.92°N 113.45°W (Elev. 3783 ft)
Last Update:
2:00 am MDT Apr 20, 2026
Forecast Valid:
10am MDT Apr 20, 2026-6pm MDT Apr 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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