National Weather Service Forecast for: Hamilton MT
Issued by: National Weather Service Missoula, MT
Updated: 1:02 am MST Dec 5, 2025
 
Overnight

Overnight: A 40 percent chance of snow. Mostly cloudy, with a low around 26. Light southeast wind. Little or no snow accumulation expected.
Chance Snow

 Friday

Friday: A chance of snow before 11am, then a chance of rain and snow between 11am and 1pm, then rain after 1pm. High near 38. Light south southeast wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Chance
Rain/Snow
then
Rain/Snow
 Friday
Night
Friday Night: Rain before 11pm, then rain or freezing rain between 11pm and 4am, then rain, snow, and freezing rain after 4am. Low around 32. South southeast wind 13 to 15 mph becoming west southwest in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Wintry Mix

 Saturday

Saturday: Rain, snow, and freezing rain before 8am, then rain and snow between 8am and 11am, then rain after 11am. High near 40. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wintry Mix
then Rain

 Saturday
Night
Saturday Night: Rain before 8pm, then rain and snow. Low around 28. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Rain/Snow

 Sunday

Sunday: A chance of snow before 11am, then rain and snow likely between 11am and 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 40. Chance of precipitation is 60%. Little or no snow accumulation expected.
Rain/Snow
Likely

 Sunday
Night
Sunday Night: Rain. Low around 32. Chance of precipitation is 80%.
Rain

 Monday

Monday: A chance of rain before 8am, then a chance of rain and snow between 8am and 11am, then a chance of rain after 11am. Mostly cloudy, with a high near 42.
Chance
Rain/Snow
then Chance
Rain
 Monday
Night
Monday Night: Rain. Cloudy, with a low around 34.
Rain
Lo 26 °F Hi 38 °F Lo 32 °F Hi 40 °F Lo 28 °F Hi 40 °F Lo 32 °F Hi 42 °F Lo 34 °F

Winter Weather Advisory
 

Overnight
 
 A 40 percent chance of snow. Mostly cloudy, with a low around 26. Light southeast wind. Little or no snow accumulation expected.
Friday
 
 A chance of snow before 11am, then a chance of rain and snow between 11am and 1pm, then rain after 1pm. High near 38. Light south southeast wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
 
 Rain before 11pm, then rain or freezing rain between 11pm and 4am, then rain, snow, and freezing rain after 4am. Low around 32. South southeast wind 13 to 15 mph becoming west southwest in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Saturday
 
 Rain, snow, and freezing rain before 8am, then rain and snow between 8am and 11am, then rain after 11am. High near 40. Southwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Saturday Night
 
 Rain before 8pm, then rain and snow. Low around 28. Southwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
 
 A chance of snow before 11am, then rain and snow likely between 11am and 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 40. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
 
 Rain. Low around 32. Chance of precipitation is 80%.
Monday
 
 A chance of rain before 8am, then a chance of rain and snow between 8am and 11am, then a chance of rain after 11am. Mostly cloudy, with a high near 42.
Monday Night
 
 Rain. Cloudy, with a low around 34.
Tuesday
 
 Rain before 11am, then rain and snow. Cloudy, with a high near 43.
Tuesday Night
 
 Rain and snow. Cloudy, with a low around 28.
Wednesday
 
 Rain and snow. Cloudy, with a high near 40.
Wednesday Night
 
 Rain and snow. Mostly cloudy, with a low around 30.
Thursday
 
 Rain and snow likely. Mostly cloudy, with a high near 42.

 

Forecast from NOAA-NWS for Hamilton MT.