National Weather Service Forecast for: Great Falls MT
Issued by: National Weather Service Great Falls, MT
Updated: 9:43 pm MST Dec 17, 2025
 
Tonight

Tonight: Partly cloudy, with a low around 25. Northwest wind 11 to 17 mph becoming southwest after midnight. Winds could gust as high as 28 mph.
Partly Cloudy


 Thursday

Thursday: Increasing clouds, with a high near 47. Southwest wind 11 to 16 mph, with gusts as high as 26 mph.
Increasing
Clouds

 Thursday
Night
Thursday Night: A slight chance of rain and snow before 11pm, then a chance of rain. Mostly cloudy, with a temperature rising to around 50 by 2am. Breezy, with a south southwest wind 16 to 21 mph increasing to 24 to 29 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Breezy.
Chance
Rain/Snow
then Chance
Rain
 Friday

Friday: A chance of rain and snow before 11am, then a chance of snow. Partly sunny, with a high near 50. Breezy, with a west wind 20 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Breezy.
Chance
Rain/Snow
then Chance
Snow
 Friday
Night
Friday Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. West southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Slight Chance
Snow then
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 41. Breezy, with a west southwest wind 14 to 22 mph, with gusts as high as 34 mph.
Sunny then
Sunny and
Breezy

 Saturday
Night
Saturday Night: Partly cloudy, with a low around 26. Southwest wind 14 to 16 mph, with gusts as high as 28 mph.
Partly Cloudy


 Sunday

Sunday: Mostly sunny, with a high near 46. South southwest wind around 10 mph, with gusts as high as 18 mph.
Mostly Sunny


 Sunday
Night
Sunday Night: A slight chance of rain and snow after 11pm. Mostly cloudy, with a low around 29.
Slight Chance
Rain/Snow
Lo 25 °F Hi 47 °F Lo 40 °F⇑ Hi 50 °F Lo 27 °F Hi 41 °F Lo 26 °F Hi 46 °F Lo 29 °F

 

Tonight
 
 Partly cloudy, with a low around 25. Northwest wind 11 to 17 mph becoming southwest after midnight. Winds could gust as high as 28 mph.
Thursday
 
 Increasing clouds, with a high near 47. Southwest wind 11 to 16 mph, with gusts as high as 26 mph.
Thursday Night
 
 A slight chance of rain and snow before 11pm, then a chance of rain. Mostly cloudy, with a temperature rising to around 50 by 2am. Breezy, with a south southwest wind 16 to 21 mph increasing to 24 to 29 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
 
 A chance of rain and snow before 11am, then a chance of snow. Partly sunny, with a high near 50. Breezy, with a west wind 20 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
 
 A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. West southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Saturday
 
 Sunny, with a high near 41. Breezy, with a west southwest wind 14 to 22 mph, with gusts as high as 34 mph.
Saturday Night
 
 Partly cloudy, with a low around 26. Southwest wind 14 to 16 mph, with gusts as high as 28 mph.
Sunday
 
 Mostly sunny, with a high near 46. South southwest wind around 10 mph, with gusts as high as 18 mph.
Sunday Night
 
 A slight chance of rain and snow after 11pm. Mostly cloudy, with a low around 29.
Monday
 
 A chance of rain and snow before 11am, then a slight chance of snow. Partly sunny, with a high near 43.
Monday Night
 
 A slight chance of snow. Partly cloudy, with a low around 26.
Tuesday
 
 Mostly sunny, with a high near 43.
Tuesday Night
 
 Mostly cloudy, with a low around 26.
Wednesday
 
 A slight chance of rain and snow. Partly sunny, with a high near 46.

 

Forecast from NOAA-NWS for Great Falls MT.