National Weather Service Forecast for: Great Falls MT
Issued by: National Weather Service Great Falls, MT
Updated: 1:12 am MST Feb 2, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 37. West southwest wind around 18 mph, with gusts as high as 30 mph.
Mostly Cloudy
Monday

Monday: Mostly sunny, with a high near 56. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 31 mph.
Mostly Sunny
and Breezy
Monday
Night
Monday Night: Mostly cloudy, with a low around 32. Southwest wind 10 to 14 mph, with gusts as high as 20 mph.
Mostly Cloudy
Tuesday

Tuesday: Mostly sunny, with a high near 53. West southwest wind 7 to 10 mph.
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 32. West northwest wind 6 to 8 mph becoming south in the evening.
Partly Cloudy
Wednesday

Wednesday: Partly sunny, with a high near 67. South southwest wind 10 to 18 mph, with gusts as high as 28 mph.
Partly Sunny
Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 38. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Partly Cloudy
Thursday

Thursday: Sunny, with a high near 70. Southwest wind 8 to 10 mph.
Sunny
Thursday
Night
Thursday Night: Mostly clear, with a low around 31.
Mostly Clear
Lo 37 °F Hi 56 °F Lo 32 °F Hi 53 °F Lo 32 °F Hi 67 °F Lo 38 °F Hi 70 °F Lo 31 °F

 

Overnight
 
Mostly cloudy, with a low around 37. West southwest wind around 18 mph, with gusts as high as 30 mph.
Monday
 
Mostly sunny, with a high near 56. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 31 mph.
Monday Night
 
Mostly cloudy, with a low around 32. Southwest wind 10 to 14 mph, with gusts as high as 20 mph.
Tuesday
 
Mostly sunny, with a high near 53. West southwest wind 7 to 10 mph.
Tuesday Night
 
Partly cloudy, with a low around 32. West northwest wind 6 to 8 mph becoming south in the evening.
Wednesday
 
Partly sunny, with a high near 67. South southwest wind 10 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
 
Partly cloudy, with a low around 38. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday
 
Sunny, with a high near 70. Southwest wind 8 to 10 mph.
Thursday Night
 
Mostly clear, with a low around 31.
Friday
 
Sunny, with a high near 67.
Friday Night
 
Partly cloudy, with a low around 37.
Saturday
 
Mostly sunny, with a high near 60.
Saturday Night
 
Partly cloudy, with a low around 40.
Sunday
 
Partly sunny, with a high near 60.

 

Forecast from NOAA-NWS for Great Falls MT.