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

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

Ravalli County Airport (KHRF)

Lat: 46.25463°NLon: 114.1246°WElev: 3644.0ft.

Clear

73°F

23°C

Humidity 40%
Wind Speed N 10 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 22 Sep 05:55 PM MDT
Extended Forecast for

Hamilton MT

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Light and variable wind becoming south 5 to 7 mph in the evening.

    Low: 46 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 75. South wind around 6 mph becoming light and variable in the morning.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. Calm wind becoming south around 6 mph after midnight.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 82. South wind 6 to 8 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 20 mph.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Light and variable wind becoming south 5 to 7 mph in the evening.
Wednesday
Sunny, with a high near 75. South wind around 6 mph becoming light and variable in the morning.
Wednesday Night
Partly cloudy, with a low around 46. Calm wind becoming south around 6 mph after midnight.
Thursday
Sunny, with a high near 82. South wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 50. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 77.
Friday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 40.
Saturday
Partly sunny, with a high near 60.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Mostly cloudy, with a high near 64.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hamilton MT
 46.24°N 114.14°W (Elev. 3678 ft)
Last Update:
2:01 pm MDT Sep 22, 2026
Forecast Valid:
6pm MDT Sep 22, 2026-6pm MDT Sep 29, 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