National Weather Service Forecast for: Hamilton MT
Issued by: National Weather Service Missoula, MT
Updated: 1:02 am MST Feb 2, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 31. South wind around 7 mph.
Mostly Cloudy
 Monday

Monday: Increasing clouds, with a high near 45. South wind 3 to 6 mph.
Increasing
Clouds
 Monday
Night
Monday Night: Mostly cloudy, with a low around 34. South wind 3 to 5 mph.
Mostly Cloudy
 Tuesday

Tuesday: Partly sunny, with a high near 50. Calm wind.
Partly Sunny
 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 31. Light south wind.
Mostly Cloudy
 Wednesday

Wednesday: Partly sunny, with a high near 53.
Partly Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 32.
Partly Cloudy
 Thursday

Thursday: Sunny, with a high near 55.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 30.
Mostly Clear
Lo 31 °F Hi 45 °F Lo 34 °F Hi 50 °F Lo 31 °F Hi 53 °F Lo 32 °F Hi 55 °F Lo 30 °F

 

Overnight
 
 Mostly cloudy, with a low around 31. South wind around 7 mph.
Monday
 
 Increasing clouds, with a high near 45. South wind 3 to 6 mph.
Monday Night
 
 Mostly cloudy, with a low around 34. South wind 3 to 5 mph.
Tuesday
 
 Partly sunny, with a high near 50. Calm wind.
Tuesday Night
 
 Mostly cloudy, with a low around 31. Light south wind.
Wednesday
 
 Partly sunny, with a high near 53.
Wednesday Night
 
 Partly cloudy, with a low around 32.
Thursday
 
 Sunny, with a high near 55.
Thursday Night
 
 Mostly clear, with a low around 30.
Friday
 
 Sunny, with a high near 54.
Friday Night
 
 Partly cloudy, with a low around 30.
Saturday
 
 Mostly sunny, with a high near 51.
Saturday Night
 
 Mostly cloudy, with a low around 32.
Sunday
 
 A chance of rain. Partly sunny, with a high near 47.

 

Forecast from NOAA-NWS for Hamilton MT.