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

Wet and Cool in the East this Memorial Day Weekend; Well Above Normal Temperatures in the Northern Plains

A wet Memorial Day weekend is in store for the East, with widespread rainfall of 1 to more than 2 inches expected from the Gulf Coast to southern New England. Well above normal temperatures are forecast to build across the northern Plains. Another round of heavy to excessive rainfall is expected to impact the western Gulf Coast this weekend with Flood Watches in effect. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Clear

75°F

24°C

Humidity 16%
Wind Speed SW 6 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 23 May 04:55 PM MDT
Extended Forecast for

Hamilton MT

  • Tonight

    Tonight: Mostly clear, with a low around 45. West northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. West northwest wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.

    Low: 46 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Sunny, with a high near 85. Light south wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 48. South wind 5 to 9 mph becoming west southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 68. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Mostly Sunny
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 67.

    High: 67 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 45. West northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Sunday
Sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 46. West northwest wind 5 to 8 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Memorial Day
Sunny, with a high near 85. Light south wind becoming southwest 6 to 11 mph in the afternoon. Winds could gust as high as 25 mph.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 48. South wind 5 to 9 mph becoming west southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Tuesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 68. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 67.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.
Thursday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 76.
Thursday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 49.
Friday
Rain likely and possibly a thunderstorm. Partly sunny, with a high near 74.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 48.
Saturday
A chance of rain and thunderstorms. Partly sunny, with a high near 71.
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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 May 23, 2026
Forecast Valid:
5pm MDT May 23, 2026-6pm MDT May 30, 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