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

43°F

6°C

Humidity 81%
Wind Speed SSW 12 MPH
Barometer 29.66 in (1004.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 12 Apr 05:05 AM MDT
Extended Forecast for

Great Falls International Airport MT

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 57. Southwest wind 8 to 13 mph becoming northeast in the afternoon. Winds could gust as high as 18 mph.

    High: 57 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Rain and thunderstorms before 1am, then rain likely. Low around 36. Northeast wind 8 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: 36 °F

    Rain

  • Monday

    Monday: Rain before 9am, then rain, possibly mixed with snow between 9am and noon, then rain after noon. High near 56. West southwest wind 9 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 56 °F

    Rain/Snow
    then Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 37. Southwest wind around 17 mph, with gusts as high as 25 mph.

    Low: 37 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. Breezy, with a southwest wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 59 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. Breezy, with a west southwest wind 13 to 23 mph, with gusts as high as 34 mph.

    Low: 39 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of rain after noon. Partly sunny, with a high near 56. Breezy, with a southwest wind 14 to 24 mph, with gusts as high as 37 mph.

    High: 56 °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 26. Breezy, with a west northwest wind 15 to 22 mph, with gusts as high as 31 mph.

    Low: 26 °F

    Rain/Snow
    Likely and
    Breezy then
    Chance Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 39.

    High: 39 °F

    Chance Snow

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 57. Southwest wind 8 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 36. Northeast wind 8 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 before 9am, then rain, possibly mixed with snow between 9am and noon, then rain after noon. High near 56. West southwest wind 9 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 37. Southwest wind around 17 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 59. Breezy, with a southwest wind 17 to 22 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 39 mph.
Tuesday Night
Mostly cloudy, with a low around 39. 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 56. Breezy, with a southwest wind 14 to 24 mph, with gusts as high as 37 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 26. Breezy, with a west northwest wind 15 to 22 mph, with gusts as high as 31 mph.
Thursday
A chance of snow. Mostly cloudy, with a high near 39.
Thursday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 21.
Friday
A slight chance of snow. Mostly sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 25.
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
 47.46°N 111.4°W (Elev. 3599 ft)
Last Update:
3:26 am MDT Apr 12, 2026
Forecast Valid:
5am 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