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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

Ravalli County Airport (KHRF)

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

Clear

52°F

11°C

Humidity 66%
Wind Speed N 5 MPH
Barometer 29.64 in (1003.73 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 12 Apr 02:55 PM MDT
Extended Forecast for

Hamilton MT

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 60. Light and variable wind. Chance of precipitation is 80%.

    High: 60 °F

    Showers

  • Tonight

    Tonight: Rain and possibly a thunderstorm. Low around 37. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 37 °F

    Rain

  • Monday

    Monday: Rain, mainly before 4pm. High near 51. South wind 5 to 8 mph becoming west southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%.

    High: 51 °F

    Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34. West southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 34 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. Light south wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Rain. High near 51. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: A chance of snow. Partly sunny, with a high near 42.

    High: 42 °F

    Chance Snow

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 60. Light and variable wind. Chance of precipitation is 80%.
Tonight
Rain and possibly a thunderstorm. Low around 37. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Rain, mainly before 4pm. High near 51. South wind 5 to 8 mph becoming west southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%.
Monday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34. West southwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
Partly sunny, with a high near 54. Light south wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 36.
Wednesday
Rain. High near 51. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 26.
Thursday
A chance of snow. Partly sunny, with a high near 42.
Thursday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 24.
Friday
A slight chance of snow. Partly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 62.
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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 Apr 12, 2026
Forecast Valid:
3pm MDT Apr 12, 2026-6pm MDT Apr 19, 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