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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

43°F

6°C

Humidity 99%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 20 Sep 03:45 AM MDT
Extended Forecast for

4 Miles SSE Clinton MT

  • Today

    Today: Patchy fog before 9am. Otherwise, sunny, with a high near 75. Calm wind.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Calm wind.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, sunny, with a high near 75. Calm wind.
Tonight
Mostly clear, with a low around 45. Calm wind.
Monday
Sunny, with a high near 79. Calm wind.
Monday Night
Mostly clear, with a low around 46. Calm wind.
Tuesday
Sunny, with a high near 79. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 79.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clinton MT
 46.73°N 113.69°W (Elev. 3586 ft)
Last Update:
2:00 am MDT Sep 20, 2026
Forecast Valid:
4am MDT Sep 20, 2026-6pm MDT Sep 26, 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