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

90°F

32°C

Humidity 19%
Wind Speed NW 9 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 13 Jul 03:10 PM MDT
Extended Forecast for

Great Falls MT

  • Tonight

    Tonight: Mostly clear, with a low around 60. North wind 5 to 9 mph becoming south in the evening.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 93. Southwest wind 5 to 10 mph becoming north 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 52. North northeast wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers
    Likely then
    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 9am. High near 58. North northeast wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

    High: 58 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Cloudy, with a low around 48. North northeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of showers before noon. Partly sunny, with a high near 68. North northeast wind around 7 mph.

    High: 68 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. East wind 5 to 8 mph becoming light and variable after midnight.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Calm wind becoming north northeast 5 to 8 mph in the afternoon.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 60. North wind 5 to 9 mph becoming south in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 93. Southwest wind 5 to 10 mph becoming north 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.
Monday Night
Showers and possibly a thunderstorm. Low around 52. North northeast wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers, with thunderstorms also possible after 9am. High near 58. North northeast wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Cloudy, with a low around 48. North northeast wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers before noon. Partly sunny, with a high near 68. North northeast wind around 7 mph.
Wednesday Night
Mostly clear, with a low around 46. East wind 5 to 8 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 78. Calm wind becoming north northeast 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.49°N 111.31°W (Elev. 3399 ft)
Last Update:
2:29 pm MDT Jul 13, 2025
Forecast Valid:
3pm MDT Jul 13, 2025-6pm MDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation