Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

69°F

21°C

Humidity 38%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 17 Aug 08:46 PM MDT
Extended Forecast for

13 Miles ESE Clinton MT

  • Tonight

    Tonight: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Mostly cloudy, then gradually becoming sunny, with a high near 84. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 55. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 51. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly cloudy, then gradually becoming sunny, with a high near 84. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 54. West northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 91. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles ESE Clinton MT
 46.71°N 113.46°W (Elev. 4687 ft)
2:30 pm MDT Aug 17, 2025
9pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
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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