National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.

Clear

81°F

27°C

Humidity 21%
Wind Speed NW 9 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 30 Aug 07:20 PM MDT
Extended Forecast for

Great Falls International Airport MT

  • Tonight

    Tonight: Mostly clear, with a low around 52. Southwest wind around 7 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88. Southwest wind around 7 mph becoming north in the afternoon.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. North wind 5 to 7 mph becoming south after midnight.

    Low: 51 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 88. Calm wind becoming northeast 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Northeast wind 6 to 10 mph becoming southwest after midnight.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Southwest wind 6 to 9 mph becoming north in the afternoon.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. East northeast wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Light and variable wind becoming northeast 5 to 9 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Southwest wind around 7 mph.
Sunday
Sunny, with a high near 88. Southwest wind around 7 mph becoming north in the afternoon.
Sunday Night
Mostly clear, with a low around 51. North wind 5 to 7 mph becoming south after midnight.
Labor Day
Sunny, with a high near 88. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 54. Northeast wind 6 to 10 mph becoming southwest after midnight.
Tuesday
Sunny, with a high near 86. Southwest wind 6 to 9 mph becoming north in the afternoon.
Tuesday Night
Partly cloudy, with a low around 52. East northeast wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday
Mostly sunny, with a high near 80. Light and variable wind becoming northeast 5 to 9 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 87.
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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:
4:13 pm MDT Aug 30, 2025
Forecast Valid:
7pm MDT Aug 30, 2025-6pm MDT Sep 6, 2025
 
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