Great Falls Airport (GTF) Weather 07/13/2026
This Afternoon
74
Chance T-storms
Tonight
50
Slight Chance T-storms then Partly Cloudy
Wednesday
75
Mostly Sunny then Chance T-storms
Wednesday Night
50
Slight Chance T-storms then Mostly Cloudy
Thursday
77
Sunny
Thursday Night
52
Partly Cloudy
Friday
78
Partly Sunny then Chance Showers
Friday Night
51
Mostly Clear
Independence Day
82
Sunny
Saturday Night
54
Mostly Clear
Sunday
85
Sunny
Sunday Night
55
Mostly Clear
Monday
85
Sunny
Weekly Forecast
This Afternoon
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 74. West southwest wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tonight
A slight chance of showers and thunderstorms between 8pm and 9pm. Partly cloudy, with a low around 50. South southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 75. West southwest wind 5 to 7 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 50. South southwest wind around 7 mph.
Thursday
Sunny, with a high near 77. Southwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 52. West wind 5 to 7 mph becoming north in the evening.
Friday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 78. South southwest wind 5 to 7 mph.
Friday Night
Mostly clear, with a low around 51. West wind 5 to 8 mph becoming south in the evening.
Independence Day
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 85.