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

28°C

82°F

Humidity 24%
Wind Speed NNW 9 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 6°C (43°F)
Visibility 16 km
Heat Index27°C (80°F)
Last update 12 Jul 08:30 PM MDT
Extended Forecast for

Great Falls MT

  • Tonight

    Tonight: Mostly clear, with a low around 15. Northwest wind 8 to 18 km/h becoming southwest after midnight. Winds could gust as high as 32 km/h.

    Low: 15 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 36. West wind 10 to 13 km/h.

    High: 36 °C

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 14. West wind 8 to 13 km/h.

    Low: 14 °C

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Sunny, with a high near 33. West southwest wind 5 to 10 km/h becoming north northwest 16 to 26 km/h in the afternoon. Winds could gust as high as 40 km/h.

    High: 33 °C

    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 12. North wind 24 to 29 km/h decreasing to 18 to 23 km/h after midnight. Winds could gust as high as 45 km/h. Chance of precipitation is 60%.

    Low: 12 °C

    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 18. Northeast wind 16 to 24 km/h, with gusts as high as 39 km/h. Chance of precipitation is 70%.

    High: 18 °C

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 9. Northeast wind 18 to 23 km/h decreasing to 11 to 16 km/h after midnight. Winds could gust as high as 37 km/h. Chance of precipitation is 50%.

    Low: 9 °C

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before noon. Partly sunny, with a high near 22. North wind 10 to 13 km/h.

    High: 22 °C

    Slight Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 8.

    Low: 8 °C

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 15. Northwest wind 8 to 18 km/h becoming southwest after midnight. Winds could gust as high as 32 km/h.
Sunday
Sunny and hot, with a high near 36. West wind 10 to 13 km/h.
Sunday Night
Mostly clear, with a low around 14. West wind 8 to 13 km/h.
Monday
A 20 percent chance of showers after noon. Sunny, with a high near 33. West southwest wind 5 to 10 km/h becoming north northwest 16 to 26 km/h in the afternoon. Winds could gust as high as 40 km/h.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 12. North wind 24 to 29 km/h decreasing to 18 to 23 km/h after midnight. Winds could gust as high as 45 km/h. 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 18. Northeast wind 16 to 24 km/h, with gusts as high as 39 km/h. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 9. Northeast wind 18 to 23 km/h decreasing to 11 to 16 km/h after midnight. Winds could gust as high as 37 km/h. Chance of precipitation is 50%.
Wednesday
A slight chance of showers before noon. Partly sunny, with a high near 22. North wind 10 to 13 km/h.
Wednesday Night
Mostly clear, with a low around 8.
Thursday
Sunny, with a high near 27.
Thursday Night
Partly cloudy, with a low around 11.
Friday
Mostly sunny, with a high near 29.
Friday Night
Mostly clear, with a low around 12.
Saturday
Sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.51°N 111.31°W (Elev. 3399 m)
Last Update:
8:28 pm MDT Jul 12, 2025
Forecast Valid:
8pm MDT Jul 12, 2025-6pm MDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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