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

63°F

17°C

Humidity 48%
Wind Speed SSW 9 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 13 Jul 12:20 AM MDT
Extended Forecast for

Great Falls International Airport MT

  • Overnight

    Overnight: Mostly clear, with a low around 57. Southwest wind around 9 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93. Southwest wind 7 to 9 mph becoming west northwest in the afternoon.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. West northwest wind 7 to 10 mph becoming southwest after midnight.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Sunny, with a high near 91. Southwest wind 8 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph.

    High: 91 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 52. North wind 15 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.

    Low: 52 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 9am, then showers likely between 9am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 61. North northeast wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

    High: 61 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Northeast wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 46 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before noon. Partly sunny, with a high near 71. North wind 7 to 9 mph.

    High: 71 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 57. Southwest wind around 9 mph.
Sunday
Sunny, with a high near 93. Southwest wind 7 to 9 mph becoming west northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 57. West northwest wind 7 to 10 mph becoming southwest after midnight.
Monday
A 20 percent chance of showers after noon. Sunny, with a high near 91. Southwest wind 8 to 18 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 52. North wind 15 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm before 9am, then showers likely between 9am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Cloudy, with a high near 61. North northeast wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Northeast wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Wednesday
A slight chance of showers before noon. Partly sunny, with a high near 71. North wind 7 to 9 mph.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 51.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 53.
Saturday
Sunny, with a high near 89.
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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:
8:28 pm MDT Jul 12, 2025
Forecast Valid:
12am MDT Jul 13, 2025-6pm MDT Jul 19, 2025
 
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