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

75°F

24°C

Humidity 16%
Wind Speed SSW 13 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Apr 04:05 PM MDT
Extended Forecast for

Great Falls International Airport MT

  • Tonight

    Tonight: Partly cloudy, with a low around 42. South southwest wind 7 to 13 mph, with gusts as high as 18 mph.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. South southwest wind 5 to 11 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. East wind 8 to 13 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 70. Breezy, with a south southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 60%.

    High: 70 °F

    Mostly Sunny
    then Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain before midnight, then rain and snow. Some thunder is also possible. Low around 33. Breezy, with a northwest wind 22 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 33 °F

    Breezy.
    Showers then
    Rain/Snow

  • Thursday

    Thursday: Snow. High near 42. Breezy, with a northwest wind 22 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 42 °F

    Snow and
    Breezy

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 25. Northwest wind 13 to 20 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Friday

    Friday: A chance of snow. Partly sunny, with a high near 41. North northwest wind 14 to 20 mph, with gusts as high as 30 mph.

    High: 41 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 42. South southwest wind 7 to 13 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 83. South southwest wind 5 to 11 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 45. East wind 8 to 13 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Wednesday
Rain likely between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 70. Breezy, with a south southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 60%.
Wednesday Night
Rain before midnight, then rain and snow. Some thunder is also possible. Low around 33. Breezy, with a northwest wind 22 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Snow. High near 42. Breezy, with a northwest wind 22 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 25. Northwest wind 13 to 20 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.
Friday
A chance of snow. Partly sunny, with a high near 41. North northwest wind 14 to 20 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 54.
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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:
4:06 pm MDT Apr 20, 2026
Forecast Valid:
4pm MDT Apr 20, 2026-6pm MDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation