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

Severe Thunderstorm and Excessive Rainfall Potential for the Central U.S. Today

Severe thunderstorms with a threat for large hail, isolated damaging winds and possibly a tornado are expected in parts of eastern Colorado today from mid afternoon to early evening. Several days of heavy rainfall will begin today over the western Gulf Coast where Flood Watches and excessive rainfall outlooks have been issued for today, Saturday, and Sunday. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Clear

59°F

15°C

Humidity 33%
Wind Speed NW 6 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 21 May 02:15 PM MDT
Extended Forecast for

Hamilton MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 64. North wind around 7 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. North wind 5 to 7 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. North wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

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

    Low: 47 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: A slight chance of rain after noon. Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 64. North wind around 7 mph.
Tonight
Partly cloudy, with a low around 38. North wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 70. Calm wind becoming north 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 41. North wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 78. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 47.
Memorial Day
A slight chance of rain after noon. Mostly sunny, with a high near 80.
Monday Night
A chance of rain. Mostly cloudy, with a low around 45.
Tuesday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 66.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 42.
Wednesday
A chance of rain and thunderstorms. Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hamilton MT
 46.26°N 114.15°W (Elev. 3599 ft)
Last Update:
2:01 pm MDT May 21, 2026
Forecast Valid:
2pm MDT May 21, 2026-6pm MDT May 27, 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