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

39°F

4°C

Humidity 93%
Wind Speed SSW 8 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 12 Apr 06:53 AM MDT
Extended Forecast for

Great Falls International Airport MT

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 58. West wind 7 to 13 mph becoming northeast in the afternoon. Winds could gust as high as 18 mph.

    High: 58 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Rain and thunderstorms before 1am, then rain likely. Low around 38. Northeast wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain

  • Monday

    Monday: Rain. High near 57. West southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 39. Southwest wind around 17 mph, with gusts as high as 24 mph.

    Low: 39 °F

    Chance Rain
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Breezy, with a southwest wind 18 to 28 mph, with gusts as high as 38 mph.

    High: 58 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. Breezy, with a west southwest wind 13 to 23 mph, with gusts as high as 34 mph.

    Low: 41 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after noon. Partly sunny, with a high near 57. Breezy, with a southwest wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 57 °F

    Mostly Cloudy
    then Chance
    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain likely before 9pm, then rain and snow likely between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 29. Breezy, with a west northwest wind 16 to 22 mph, with gusts as high as 30 mph.

    Low: 29 °F

    Rain/Snow
    Likely and
    Breezy then
    Chance Snow

  • Thursday

    Thursday: A chance of snow. Partly sunny, with a high near 40.

    High: 40 °F

    Chance Snow

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 58. West wind 7 to 13 mph becoming northeast in the afternoon. Winds could gust as high as 18 mph.
Tonight
Rain and thunderstorms before 1am, then rain likely. Low around 38. Northeast wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain. High near 57. West southwest wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 39. Southwest wind around 17 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 58. Breezy, with a southwest wind 18 to 28 mph, with gusts as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 41. Breezy, with a west southwest wind 13 to 23 mph, with gusts as high as 34 mph.
Wednesday
A 40 percent chance of rain after noon. Partly sunny, with a high near 57. Breezy, with a southwest wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.
Wednesday Night
Rain likely before 9pm, then rain and snow likely between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 29. Breezy, with a west northwest wind 16 to 22 mph, with gusts as high as 30 mph.
Thursday
A chance of snow. Partly sunny, with a high near 40.
Thursday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 23.
Friday
A slight chance of snow. Mostly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls International Airport MT
 47.49°N 111.37°W (Elev. 3635 ft)
Last Update:
3:26 am MDT Apr 12, 2026
Forecast Valid:
7am MDT Apr 12, 2026-6pm MDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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