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

Heavy Snow and Disruptive Ice in the Upper Midwest; Severe Thunderstorms in the Southern Plains

A late season winter storm will produce a combination of heavy snow and disruptive ice starting this evening in the Northern Plains and moving into the Upper Midwest and Great Lakes by tonight continuing through Thursday. Severe thunderstorms will likely produce severe wind gusts, large hail, a few tornadoes, and heavy rainfall across the southern and central Plains into the morning. Read More >

Hazardous Weather Conditions

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

unknown precip

48°F

9°C

Humidity 69%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 01 Apr 07:00 PM MDT
Extended Forecast for

Greenough MT

Winter Weather Advisory April 2, 06:00am until April 3, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Rain. Low around 30. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Rain

  • Thursday

    Thursday: Rain and snow, becoming all snow after noon. High near 40. Calm wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Rain/Snow
    then Snow

  • Thursday Night

    Thursday Night: Snow, mainly before midnight. Low around 28. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Snow then
    Chance Snow

  • Friday

    Friday: A 20 percent chance of snow before noon. Snow level rising to 4900 feet in the afternoon. Mostly cloudy, with a high near 47. Calm wind becoming west around 6 mph in the afternoon.

    High: 47 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22. Light and variable wind.

    Low: 22 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 27.

    Low: 27 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain. Low around 30. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain and snow, becoming all snow after noon. High near 40. Calm wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Thursday Night
Snow, mainly before midnight. Low around 28. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
A 20 percent chance of snow before noon. Snow level rising to 4900 feet in the afternoon. Mostly cloudy, with a high near 47. Calm wind becoming west around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 22. Light and variable wind.
Saturday
Sunny, with a high near 56.
Saturday Night
Clear, with a low around 27.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
A slight chance of rain and snow. Partly cloudy, with a low around 34.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greenough MT
 46.92°N 113.45°W (Elev. 3783 ft)
Last Update:
2:01 pm MDT Apr 1, 2026
Forecast Valid:
7pm MDT Apr 1, 2026-6pm MDT Apr 8, 2026
 
Forecast Discussion
 
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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