National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.

Clear

84°F

29°C

Humidity 29%
Wind Speed E 6 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 05 Jul 04:53 PM MDT
Extended Forecast for

5 Miles S Great Falls International Airport MT

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Northwest wind 6 to 10 mph becoming southeast in the evening. Winds could gust as high as 22 mph.

    Low: 54 °F

    Decreasing
    Clouds

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. Northwest wind 5 to 9 mph becoming east northeast in the afternoon.

    High: 75 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 56. East northeast wind 5 to 8 mph becoming southwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 82. Southwest wind around 5 mph becoming light and variable. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. East wind 6 to 8 mph becoming south after midnight.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 90. South wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 57. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. South southwest wind 6 to 8 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Northwest wind 6 to 10 mph becoming southeast in the evening. Winds could gust as high as 22 mph.
Monday
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. Northwest wind 5 to 9 mph becoming east northeast in the afternoon.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 56. East northeast wind 5 to 8 mph becoming southwest after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A slight chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 82. Southwest wind around 5 mph becoming light and variable. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 57. East wind 6 to 8 mph becoming south after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 90. South wind 7 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 57. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 83. South southwest wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Great Falls International Airport MT
 47.4°N 111.38°W (Elev. 3599 ft)
Last Update:
3:51 pm MDT Jul 5, 2026
Forecast Valid:
5pm MDT Jul 5, 2026-6pm MDT Jul 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation