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.

NA

50°F

10°C

Humidity 61%
Wind Speed N 6 MPH
Barometer 29.67 in (1004.74 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 12 Apr 07:53 PM MDT
Extended Forecast for

Great Falls International Airport MT

  • Overnight

    Overnight: A 40 percent chance of rain. Mostly cloudy, with a low around 36. West southwest wind around 7 mph.

    Low: 36 °F

    Chance Rain

  • Monday

    Monday: A 50 percent chance of rain after noon. Partly sunny, with a high near 57. West southwest wind 8 to 18 mph, with gusts as high as 26 mph.

    High: 57 °F

    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 36. Southwest wind around 17 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Chance Rain
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Breezy, with a southwest wind 18 to 26 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 39. Breezy, with a southwest wind 14 to 23 mph, with gusts as high as 34 mph.

    Low: 39 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain after noon. Partly sunny, with a high near 59. Breezy, with a southwest wind 15 to 23 mph, with gusts as high as 36 mph.

    High: 59 °F

    Partly Sunny
    then Chance
    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain before midnight, then rain and snow. Low around 26. West southwest wind 14 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain then
    Rain/Snow

  • Thursday

    Thursday: Snow likely. Mostly cloudy, with a high near 36. Northwest wind 16 to 20 mph, with gusts as high as 29 mph.

    High: 36 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A chance of snow before midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow
    then Partly
    Cloudy

Detailed Forecast

Overnight
A 40 percent chance of rain. Mostly cloudy, with a low around 36. West southwest wind around 7 mph.
Monday
A 50 percent chance of rain after noon. Partly sunny, with a high near 57. West southwest wind 8 to 18 mph, with gusts as high as 26 mph.
Monday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 36. Southwest wind around 17 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 58. Breezy, with a southwest wind 18 to 26 mph, with gusts as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 39. Breezy, with a southwest wind 14 to 23 mph, with gusts as high as 34 mph.
Wednesday
A 30 percent chance of rain after noon. Partly sunny, with a high near 59. Breezy, with a southwest wind 15 to 23 mph, with gusts as high as 36 mph.
Wednesday Night
Rain before midnight, then rain and snow. Low around 26. West southwest wind 14 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
Snow likely. Mostly cloudy, with a high near 36. Northwest wind 16 to 20 mph, with gusts as high as 29 mph.
Thursday Night
A chance of snow before midnight. Mostly cloudy, with a low around 20.
Friday
A chance of snow after noon. Mostly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 63.
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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:
3:32 am MDT Apr 13, 2026
Forecast Valid:
4am MDT Apr 13, 2026-6pm MDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation