Great Falls Airport (GTF) Weather 05/21/2025
This Afternoon
61
Slight Chance T-storms
Tonight
37
Slight Chance Showers then Partly Cloudy
Thursday
65
Mostly Cloudy then Chance Showers
Thursday Night
43
Showers Likely then Chance Showers
Friday
63
Chance Showers
Friday Night
41
Partly Cloudy
Saturday
67
Mostly Sunny then Slight Chance Showers
Saturday Night
43
Mostly Clear
Sunday
74
Sunny
Sunday Night
46
Mostly Clear
Memorial Day
79
Sunny
Monday Night
50
Slight Chance Showers then Mostly Clear
Tuesday
80
Sunny then Chance Showers
Weekly Forecast
This Afternoon
A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 61. West southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers before 7pm. Partly cloudy, with a low around 37. Southwest wind 8 to 13 mph becoming light south southwest after midnight. Winds could gust as high as 20 mph.
Thursday
A 40 percent chance of showers, mainly after 3pm. Increasing clouds, with a high near 65. Calm wind becoming east southeast 5 to 8 mph in the afternoon.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43. East southeast wind 7 to 9 mph becoming west southwest after midnight. Chance of precipitation is 70%.
Friday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 63. West southwest wind 8 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 41. North wind 5 to 10 mph becoming southwest after midnight.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 67. South southwest wind 5 to 9 mph becoming north northeast in the afternoon.
Saturday Night
Mostly clear, with a low around 43. Northeast wind 5 to 10 mph becoming south after midnight.
Sunday
Sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 46.
Memorial Day
Sunny, with a high near 79.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 50.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.