Weather forecast for: Great Falls International Airport MT
Last Update: 12:31 am MDT Oct 17, 2026
Overnight: Partly cloudy, with a low around 46. Breezy, with a south southwest wind 20 to 23 mph, with gusts as high as 32 mph.
Saturday: Mostly sunny, with a high near 72. Windy, with a south southwest wind 24 to 32 mph, with gusts as high as 50 mph.
Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 42. Breezy, with a west southwest wind 19 to 24 mph becoming light south southwest after midnight. Winds could gust as high as 33 mph.
Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 61. Light and variable wind becoming east northeast around 6 mph in the afternoon.
Sunday Night: Partly cloudy, with a low around 39. East northeast wind around 6 mph becoming light and variable after midnight.
Monday: Mostly sunny, with a high near 67. Calm wind becoming south around 5 mph in the afternoon.
Monday Night: Mostly cloudy, with a low around 41. East wind around 6 mph becoming light and variable after midnight.
Tuesday: Partly sunny, with a high near 56. Light and variable wind becoming north northwest around 6 mph in the afternoon.
Tuesday Night: Mostly cloudy, with a low around 37.
Wednesday: Mostly sunny, with a high near 62.
Wednesday Night: Partly cloudy, with a low around 41.
Thursday: Mostly sunny, with a high near 65.
Thursday Night: A chance of rain. Mostly cloudy, with a low around 41.
Friday: A chance of rain. Mostly cloudy, with a high near 48.
WeatherWorld.com
City of Great Falls, MT
