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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

48°F

9°C

Humidity 74%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 18 Jun 02:30 AM MDT
Extended Forecast for

15 Miles SE Clinton MT

  • Overnight

    Overnight: Mostly clear, with a low around 47. Southwest wind around 7 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 69. Southwest wind 6 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. Northwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 46 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Partly sunny, with a high near 73. Light and variable wind becoming east around 6 mph in the morning.

    High: 73 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. North northeast wind around 6 mph becoming light and variable in the evening.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Saturday Night

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

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 47. Southwest wind around 7 mph.
Thursday
Sunny, with a high near 69. Southwest wind 6 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 46. Northwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Juneteenth
Partly sunny, with a high near 73. Light and variable wind becoming east around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 52. North northeast wind around 6 mph becoming light and variable in the evening.
Saturday
Partly sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SE Clinton MT
 46.64°N 113.48°W (Elev. 5600 ft)
Last Update:
2:01 am MDT Jun 18, 2026
Forecast Valid:
2am MDT Jun 18, 2026-6pm MDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation