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

64°F

18°C

Humidity 52%
Wind Speed SSW 3 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Jun 10:00 AM MDT
Extended Forecast for

Great Falls MT

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 82. Light and variable wind becoming northwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, with a low around 51. North northwest wind 7 to 10 mph becoming southwest in the evening. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 72. West southwest wind 6 to 10 mph becoming north in the afternoon.

    High: 72 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 46. North wind 5 to 10 mph becoming light northwest after midnight. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 68. Calm wind becoming north northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. North wind 5 to 10 mph becoming light and variable after midnight.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47. East northeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 82. Light and variable wind becoming northwest 5 to 8 mph in the afternoon.
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am. Mostly cloudy, with a low around 51. North northwest wind 7 to 10 mph becoming southwest in the evening. Chance of precipitation is 30%.
Sunday
A 20 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 72. West southwest wind 6 to 10 mph becoming north in the afternoon.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 46. North wind 5 to 10 mph becoming light northwest after midnight. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 68. Calm wind becoming north northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 43. North wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 76. Calm wind becoming east northeast around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 47. East northeast wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.5°N 111.28°W (Elev. 3399 ft)
Last Update:
3:11 am MDT Jun 20, 2026
Forecast Valid:
10am MDT Jun 20, 2026-6pm MDT Jun 26, 2026
 
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