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

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

66°F

19°C

Humidity 34%
Wind Speed WSW 8 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 11 Apr 02:15 PM MDT
Extended Forecast for

Greenough MT

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 62. West wind around 6 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of rain before 9pm. Patchy fog after midnight. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Chance Rain
    then Patchy
    Fog

  • Sunday

    Sunday: A chance of rain, then showers and possibly a thunderstorm after 3pm. Areas of fog before 9am. High near 61. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Areas Fog
    then Showers

  • Sunday Night

    Sunday Night: Rain. Patchy fog after 10pm. Low around 36. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Rain and
    Patchy Fog

  • Monday

    Monday: Rain. Patchy fog before 9am. High near 50. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain after midnight. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain and snow likely, becoming all rain after noon. Snow level 4400 feet. Mostly cloudy, with a high near 47.

    High: 47 °F

    Rain/Snow
    Likely then
    Rain Likely

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 62. West wind around 6 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Tonight
A 40 percent chance of rain before 9pm. Patchy fog after midnight. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind around 5 mph becoming calm in the evening.
Sunday
A chance of rain, then showers and possibly a thunderstorm after 3pm. Areas of fog before 9am. High near 61. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain. Patchy fog after 10pm. Low around 36. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain. Patchy fog before 9am. High near 50. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34.
Tuesday
Mostly cloudy, with a high near 51.
Tuesday Night
A chance of rain after midnight. Mostly cloudy, with a low around 32.
Wednesday
Rain and snow likely, becoming all rain after noon. Snow level 4400 feet. Mostly cloudy, with a high near 47.
Wednesday Night
Rain and snow likely before midnight, then a chance of snow. Mostly cloudy, with a low around 25.
Thursday
Snow likely. Mostly cloudy, with a high near 40.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 21.
Friday
A slight chance of snow. Partly sunny, with a high near 45.
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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:
2:00 pm MDT Apr 11, 2026
Forecast Valid:
2pm MDT Apr 11, 2026-6pm MDT Apr 17, 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