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

61°F

16°C

Humidity 59%
Wind Speed W 9 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 27 May 12:35 AM MDT
Extended Forecast for

3 Miles N Great Falls International Airport MT

  • Overnight

    Overnight: A 20 percent chance of showers before 3am. Mostly cloudy, with a low around 54. West southwest wind around 6 mph.

    Low: 54 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 85. West wind around 6 mph becoming light and variable. Chance of precipitation is 40%.

    High: 85 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 54. East southeast wind around 6 mph becoming calm in the evening.

    Low: 54 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 92. Calm wind becoming east 5 to 9 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 56. East wind 5 to 10 mph becoming light and variable after midnight.

    Low: 56 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 92. Light and variable wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 20%.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. East southeast wind 5 to 11 mph becoming west northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 50%.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 72. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

    High: 72 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers before 3am. Mostly cloudy, with a low around 54. West southwest wind around 6 mph.
Wednesday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 85. West wind around 6 mph becoming light and variable. Chance of precipitation is 40%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 54. East southeast wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 92. Calm wind becoming east 5 to 9 mph in the afternoon.
Thursday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 56. East wind 5 to 10 mph becoming light and variable after midnight.
Friday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 92. Light and variable wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. East southeast wind 5 to 11 mph becoming west northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 50%.
Saturday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 72. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
Saturday Night
Showers and possibly a thunderstorm before midnight, then rain likely after midnight. Mostly cloudy, with a low around 45.
Sunday
Rain likely before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 66.
Sunday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 42.
Monday
A chance of rain and thunderstorms. Partly sunny, with a high near 69.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 43.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Great Falls International Airport MT
 47.53°N 111.38°W (Elev. 3399 ft)
Last Update:
12:31 am MDT May 27, 2026
Forecast Valid:
12am MDT May 27, 2026-6pm MDT Jun 2, 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