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.

Mostly Cloudy

48°F

9°C

Humidity 46%
Wind Speed SW 5 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 30 Apr 09:20 AM MDT
Extended Forecast for

Great Falls MT

  • Today

    Today: Mostly sunny, with a high near 64. Light and variable wind becoming north northwest around 5 mph in the afternoon.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. North wind around 6 mph becoming south in the evening.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 73. Southwest wind 6 to 10 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Southwest wind 5 to 7 mph.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 69. West wind 5 to 8 mph becoming northeast in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Northeast wind 5 to 9 mph becoming light north northeast after midnight. Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 70. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 70 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. Northeast wind around 6 mph becoming light and variable in the evening.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 64. Light and variable wind becoming north northwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 35. North wind around 6 mph becoming south in the evening.
Friday
Sunny, with a high near 73. Southwest wind 6 to 10 mph.
Friday Night
Mostly clear, with a low around 39. Southwest wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 69. West wind 5 to 8 mph becoming northeast in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Northeast wind 5 to 9 mph becoming light north northeast after midnight. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 70. Calm wind becoming north northeast around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 42. Northeast wind around 6 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
A slight chance of rain. Partly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.5°N 111.28°W (Elev. 3399 ft)
Last Update:
5:31 am MDT Apr 30, 2026
Forecast Valid:
9am MDT Apr 30, 2026-6pm MDT May 6, 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