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.

Partly Cloudy

66°F

19°C

Humidity 25%
Wind Speed NNW 5 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 02 May 05:20 PM MDT
Extended Forecast for

Great Falls International Airport MT

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 40. East northeast wind 6 to 10 mph becoming west southwest after midnight. Chance of precipitation is 30%.

    Low: 40 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 74. Southwest wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 41. West northwest wind 10 to 13 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.

    Low: 41 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers. Mostly cloudy, with a high near 55. North wind 10 to 15 mph, with gusts as high as 22 mph.

    High: 55 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31. North wind 6 to 15 mph, with gusts as high as 22 mph.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56. North wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. North wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 18 mph.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71. South wind 5 to 8 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after midnight. Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 40. East northeast wind 6 to 10 mph becoming west southwest after midnight. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 74. Southwest wind 6 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 41. West northwest wind 10 to 13 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 55. North wind 10 to 15 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 31. North wind 6 to 15 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 56. North wind 6 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 33. North wind 5 to 11 mph becoming south after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 71. South wind 5 to 8 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 46.
Thursday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 73.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 45.
Friday
Partly sunny, with a high near 73.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
A slight chance of rain. Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls International Airport MT
 47.46°N 111.4°W (Elev. 3599 ft)
Last Update:
3:57 pm MDT May 2, 2026
Forecast Valid:
5pm MDT May 2, 2026-6pm MDT May 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation