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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

74°F

23°C

Humidity 35%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 28 Aug 12:30 PM MDT
Extended Forecast for

Clinton MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 85. Calm wind becoming west around 5 mph.

    High: 85 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of rain between 11pm and 5am. Patchy smoke after 8pm. Mostly cloudy, with a low around 53. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain before noon, then a chance of showers and thunderstorms between noon and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy smoke before 9am. Mostly cloudy, with a high near 80. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance Rain
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Rain and thunderstorms before 3am, then a chance of rain after 4am. Low around 45. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: A 30 percent chance of rain before noon. Partly sunny, with a high near 70. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 70 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 85. Calm wind becoming west around 5 mph.
Tonight
A slight chance of rain between 11pm and 5am. Patchy smoke after 8pm. Mostly cloudy, with a low around 53. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Saturday
A chance of rain before noon, then a chance of showers and thunderstorms between noon and 2pm, then showers likely and possibly a thunderstorm after 2pm. Patchy smoke before 9am. Mostly cloudy, with a high near 80. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain and thunderstorms before 3am, then a chance of rain after 4am. Low around 45. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A 30 percent chance of rain before noon. Partly sunny, with a high near 70. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Sunny, with a high near 87.
Tuesday Night
A chance of rain before midnight. Mostly cloudy, with a low around 50.
Wednesday
A chance of rain. Partly sunny, with a high near 80.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 46.
Thursday
A chance of rain. Partly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clinton MT
 46.77°N 113.73°W (Elev. 3766 ft)
Last Update:
12:22 pm MDT Aug 28, 2026
Forecast Valid:
12pm MDT Aug 28, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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