Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Clear

70°F

21°C

Humidity 18%
Wind Speed N 6 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 19 Apr 05:55 PM MDT
Extended Forecast for

Hamilton MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Light and variable wind.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after midnight.  Mostly cloudy, with a low around 44. South southwest wind around 6 mph becoming calm  in the evening.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, then showers and possibly a thunderstorm after noon.  High near 60. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Rain Likely
    then Showers

  • Wednesday Night

    Wednesday Night: Rain.  Low around 37. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain

  • Thursday

    Thursday: Rain likely, mainly before noon.  Mostly cloudy, with a high near 50.

    High: 50 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain before midnight, then a slight chance of rain and snow.  Mostly cloudy, with a low around 29.

    Low: 29 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. Light and variable wind.
Monday
Mostly sunny, with a high near 77. Calm wind becoming south southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 82. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 44. South southwest wind around 6 mph becoming calm in the evening.
Wednesday
Rain likely, then showers and possibly a thunderstorm after noon. High near 60. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 37. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain likely, mainly before noon. Mostly cloudy, with a high near 50.
Thursday Night
A chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 29.
Friday
A slight chance of snow before 9am, then a slight chance of rain and snow between 9am and 3pm, then a slight chance of rain after 3pm. Partly sunny, with a high near 50.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
Hamilton MT
 46.26°N 114.15°W (Elev. 3599 ft)
2:00 pm MDT Apr 19, 2026
6pm MDT Apr 19, 2026-6pm MDT Apr 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