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

-9°C

16°F

Humidity 78%
Wind Speed SW 8 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint -12°C (10°F)
Visibility 16 km
Wind Chill-15°C (5°F)
Last update 15 Mar 09:05 PM MDT
Extended Forecast for

Great Falls MT

  • Tonight

    Tonight: Mostly cloudy, with a low around -11. Light south wind becoming south southwest 9 to 14 km/h in the evening.

    Low: -11 °C

    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain before 2pm, then a slight chance of rain after 3pm. Partly sunny, with a high near 10. Southwest wind 14 to 24 km/h increasing to 24 to 34 km/h in the afternoon. Winds could gust as high as 55 km/h. Chance of precipitation is 20%.

    High: 10 °C

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 6. Breezy, with a southwest wind 32 to 42 km/h, with gusts as high as 65 km/h.

    Low: 6 °C

    Breezy.
    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 15. Breezy, with a southwest wind 40 to 47 km/h, with gusts as high as 70 km/h.

    High: 15 °C

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 8. Southwest wind 29 to 34 km/h, with gusts as high as 55 km/h.

    Low: 8 °C

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 18. Breezy, with a southwest wind 29 to 39 km/h, with gusts as high as 65 km/h.

    High: 18 °C

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 8. Southwest wind 27 to 34 km/h, with gusts as high as 50 km/h.

    Low: 8 °C

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 21. Breezy, with a southwest wind 32 to 37 km/h increasing to 42 to 47 km/h in the afternoon. Winds could gust as high as 70 km/h.

    High: 21 °C

    Mostly Cloudy
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 11. Breezy.

    Low: 11 °C

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around -11. Light south wind becoming south southwest 9 to 14 km/h in the evening.
Monday
A slight chance of rain before 2pm, then a slight chance of rain after 3pm. Partly sunny, with a high near 10. Southwest wind 14 to 24 km/h increasing to 24 to 34 km/h in the afternoon. Winds could gust as high as 55 km/h. Chance of precipitation is 20%.
Monday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 6. Breezy, with a southwest wind 32 to 42 km/h, with gusts as high as 65 km/h.
Tuesday
Mostly cloudy, with a high near 15. Breezy, with a southwest wind 40 to 47 km/h, with gusts as high as 70 km/h.
Tuesday Night
Mostly cloudy, with a low around 8. Southwest wind 29 to 34 km/h, with gusts as high as 55 km/h.
Wednesday
Mostly cloudy, with a high near 18. Breezy, with a southwest wind 29 to 39 km/h, with gusts as high as 65 km/h.
Wednesday Night
Mostly cloudy, with a low around 8. Southwest wind 27 to 34 km/h, with gusts as high as 50 km/h.
Thursday
Mostly cloudy, with a high near 21. Breezy, with a southwest wind 32 to 37 km/h increasing to 42 to 47 km/h in the afternoon. Winds could gust as high as 70 km/h.
Thursday Night
Mostly cloudy, with a low around 11. Breezy.
Friday
Mostly cloudy, with a high near 22. Breezy.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 8.
Saturday
A slight chance of rain. Partly sunny, with a high near 23.
Saturday Night
Partly cloudy, with a low around 2.
Sunday
Mostly sunny, with a high near 17.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.51°N 111.31°W (Elev. 3399 m)
Last Update:
7:53 pm MDT Mar 15, 2026
Forecast Valid:
9pm MDT Mar 15, 2026-6pm MDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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