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

70°F

21°C

Humidity 18%
Wind Speed SW 13 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 19 Apr 05:20 PM MDT
Extended Forecast for

Great Falls International Airport MT

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Southwest wind 8 to 14 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 75. Southwest wind 6 to 10 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. South southwest wind 7 to 11 mph.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. South southwest wind 6 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. East southeast wind 8 to 14 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 66. Breezy, with a west wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 70%.

    High: 66 °F

    Mostly Sunny
    then Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain before midnight, then rain and snow. Low around 31. Blustery, with a northwest wind 24 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Blustery.
    Rain then
    Rain/Snow

  • Thursday

    Thursday: Snow likely, mainly before noon. Mostly cloudy, with a high near 44. Breezy, with a north northwest wind 21 to 25 mph, with gusts as high as 34 mph.

    High: 44 °F

    Snow Likely
    and Breezy

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. Southwest wind 8 to 14 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 75. Southwest wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 42. South southwest wind 7 to 11 mph.
Tuesday
Mostly sunny, with a high near 80. South southwest wind 6 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 45. East southeast wind 8 to 14 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Wednesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 66. Breezy, with a west wind 8 to 13 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 70%.
Wednesday Night
Rain before midnight, then rain and snow. Low around 31. Blustery, with a northwest wind 24 to 28 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
Snow likely, mainly before noon. Mostly cloudy, with a high near 44. Breezy, with a north northwest wind 21 to 25 mph, with gusts as high as 34 mph.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 25.
Friday
A chance of snow. Mostly cloudy, with a high near 40.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 21.
Saturday
A slight chance of snow. Partly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls International Airport MT
 47.46°N 111.4°W (Elev. 3599 ft)
Last Update:
12:31 pm MDT Apr 19, 2026
Forecast Valid:
5pm MDT Apr 19, 2026-6pm MDT Apr 26, 2026
 
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