Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Mostly Cloudy

57°F

14°C

Humidity 38%
Wind Speed NNE 9 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 19 May 07:15 PM MDT
Extended Forecast for

3 Miles S Hamilton MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. North wind 5 to 10 mph becoming light and variable  in the evening. Winds could gust as high as 18 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 64. Light and variable wind becoming northwest 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 64 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then showers and possibly a thunderstorm between 11pm and midnight, then rain likely after midnight.  Low around 39. North wind 8 to 13 mph becoming light  after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 64. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 64 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40. North northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. North wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 18 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 64. Light and variable wind becoming northwest 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then showers and possibly a thunderstorm between 11pm and midnight, then rain likely after midnight. Low around 39. North wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 64. Calm wind becoming north 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 40. North northwest wind 5 to 8 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 48.
Memorial Day
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Monday Night
A chance of rain. Mostly cloudy, with a low around 44.
Tuesday
A slight chance of rain. Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Hamilton MT
 46.2°N 114.14°W (Elev. 3796 ft)
2:01 pm MDT May 19, 2026
7pm MDT May 19, 2026-6pm MDT May 26, 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