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

66°F

19°C

Humidity 22%
Wind Speed N 5 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 10 Apr 04:53 PM MDT
Extended Forecast for

Great Falls International Airport MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. East northeast wind 5 to 10 mph becoming west southwest after midnight.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 71. South southwest wind 5 to 10 mph becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 39. Southwest wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely then
    Slight Chance
    Rain

  • Sunday

    Sunday: A 40 percent chance of rain after noon. Partly sunny, with a high near 60. Southwest wind around 10 mph becoming north northeast in the afternoon.

    High: 60 °F

    Mostly Sunny
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 37. Northeast wind 9 to 11 mph becoming west northwest after midnight. Chance of precipitation is 80%.

    Low: 37 °F

    Rain

  • Monday

    Monday: Rain likely, then showers and possibly a thunderstorm after noon. High near 56. West southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    High: 56 °F

    Showers

  • Monday Night

    Monday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 36. Southwest wind around 14 mph, with gusts as high as 22 mph.

    Low: 36 °F

    Chance Rain
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 57. Breezy, with a southwest wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 57 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Breezy.

    Low: 38 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. East northeast wind 5 to 10 mph becoming west southwest after midnight.
Saturday
A 40 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 71. South southwest wind 5 to 10 mph becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
Showers likely before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 39. Southwest wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Sunday
A 40 percent chance of rain after noon. Partly sunny, with a high near 60. Southwest wind around 10 mph becoming north northeast in the afternoon.
Sunday Night
Rain. Low around 37. Northeast wind 9 to 11 mph becoming west northwest after midnight. Chance of precipitation is 80%.
Monday
Rain likely, then showers and possibly a thunderstorm after noon. High near 56. West southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Monday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 36. Southwest wind around 14 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 57. Breezy, with a southwest wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Breezy.
Wednesday
A chance of rain, mainly after noon. Mostly cloudy, with a high near 55. Breezy.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Breezy.
Thursday
A chance of snow. Mostly cloudy, with a high near 42.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
Friday
A slight chance of snow. Mostly sunny, with a high near 50.
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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:
4:27 pm MDT Apr 10, 2026
Forecast Valid:
6pm MDT Apr 10, 2026-6pm MDT Apr 17, 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