Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Partly Cloudy

59°F

15°C

Humidity 72%
Wind Speed NNW 8 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 04 Sep 12:35 PM MDT
Extended Forecast for

Hamilton MT

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms after 4pm.  Increasing clouds, with a high near 67. North wind 3 to 6 mph.

    High: 67 °F

    Chance
    Showers

  • Tonight

    Tonight: Rain and possibly a thunderstorm.  Patchy fog after 3am. Low around 45. North northeast wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Rain and
    Patchy Fog

  • Saturday

    Saturday: Rain and thunderstorms likely before 4pm, then a slight chance of showers and thunderstorms after 5pm.  Patchy fog before 9am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 73. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Rain Likely
    and Patchy
    Fog then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of rain and thunderstorms before 3am, then a slight chance of rain after 5am.  Mostly cloudy, with a low around 44. North wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 50%.

    Low: 44 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain before 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly cloudy, with a high near 75. Calm wind becoming north around 6 mph in the afternoon.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm, then rain after 9pm.  Low around 41. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Showers

  • Labor Day

    Labor Day: Showers and possibly a thunderstorm.  High near 62. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Monday Night

    Monday Night: A chance of rain, mainly before midnight.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 67. North wind 3 to 6 mph.
Tonight
Rain and possibly a thunderstorm. Patchy fog after 3am. Low around 45. North northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Rain and thunderstorms likely before 4pm, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 73. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of rain and thunderstorms before 3am, then a slight chance of rain after 5am. Mostly cloudy, with a low around 44. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Sunday
A chance of rain before 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 75. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm, then rain after 9pm. Low around 41. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Labor Day
Showers and possibly a thunderstorm. High near 62. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A chance of rain, mainly before midnight. Mostly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Hamilton MT
 46.26°N 114.15°W (Elev. 3599 ft)
12:22 pm MDT Sep 4, 2026
12pm MDT Sep 4, 2026-6pm MDT Sep 10, 2026
 
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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