National Weather Service Forecast for: Hamilton MT
Issued by: National Weather Service Missoula, MT
Updated: 3:31 am MDT Jul 5, 2025
 
Today

Today: A 40 percent chance of showers and thunderstorms, mainly after noon.  Partly sunny, with a high near 75. Light and variable wind becoming north 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Chance
T-storms
Tonight

Tonight: Mostly clear, with a low around 47. North wind 5 to 8 mph becoming calm  in the evening.
Mostly Clear
Sunday

Sunday: Sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.
Sunny
Sunday
Night
Sunday Night: Partly cloudy, with a low around 50. West wind 5 to 8 mph becoming light and variable  after midnight.
Partly Cloudy
Monday

Monday: Sunny, with a high near 88. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon.
Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 55.
Mostly Clear
Tuesday

Tuesday: Sunny, with a high near 95.
Sunny
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 58.
Partly Cloudy
Wednesday

Wednesday: Sunny, with a high near 92.
Sunny
Hi 75 °F Lo 47 °F Hi 83 °F Lo 50 °F Hi 88 °F Lo 55 °F Hi 95 °F Lo 58 °F Hi 92 °F

 

Today
 
A 40 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 75. Light and variable wind becoming north 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Tonight
 
Mostly clear, with a low around 47. North wind 5 to 8 mph becoming calm in the evening.
Sunday
 
Sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
 
Partly cloudy, with a low around 50. West wind 5 to 8 mph becoming light and variable after midnight.
Monday
 
Sunny, with a high near 88. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon.
Monday Night
 
Mostly clear, with a low around 55.
Tuesday
 
Sunny, with a high near 95.
Tuesday Night
 
Partly cloudy, with a low around 58.
Wednesday
 
Sunny, with a high near 92.
Wednesday Night
 
Partly cloudy, with a low around 56.
Thursday
 
Sunny, with a high near 85.
Thursday Night
 
Mostly clear, with a low around 52.
Friday
 
Sunny, with a high near 89.

 

Forecast from NOAA-NWS for Hamilton MT.