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.

Overcast

84°F

29°C

Humidity 25%
Wind Speed NW 13 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 03 Aug 04:55 PM MDT
Extended Forecast for

Great Falls MT

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 87. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 50%.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Low around 55. West northwest wind 6 to 9 mph becoming east in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 81. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57. West northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 87. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 50%.
Monday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Low around 55. West northwest wind 6 to 9 mph becoming east in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A slight chance of showers, with thunderstorms also possible after 3pm. Mostly sunny, with a high near 81. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 54. West wind 5 to 10 mph becoming light and variable. Winds could gust as high as 18 mph.
Wednesday
Mostly sunny, with a high near 87. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 57. West northwest wind 5 to 10 mph becoming light and variable after midnight.
Thursday
A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 73.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.49°N 111.31°W (Elev. 3399 ft)
Last Update:
2:12 pm MDT Aug 3, 2025
Forecast Valid:
5pm MDT Aug 3, 2025-6pm MDT Aug 10, 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