Tropical Moisture Producing Heavy Rain in Portions of the Western U.S., Southeast Florida, and Puerto Rico and the U.S. Virgin Islands

Heavy rain and flash flooding will continue across portions of California, the Southwest, and parts of the Southern Rockies. Strong to locally severe thunderstorms and heavy rain will impact portions of the Plains and Mississippi Valley. Tropical moisture is causing heavy rainfall in southeast Florida, Puerto Rico and the Virgin Islands, Read More >

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

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

Clear

55°F

13°C

Humidity 62%
Wind Speed SSW 3 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 19 Sep 03:00 AM MDT
Extended Forecast for

Great Falls MT

  • Overnight

    Overnight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 81. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 48. East northeast wind around 6 mph becoming light and variable  after midnight.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. Southwest wind 5 to 8 mph.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52. South southwest wind around 8 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83. South southwest wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 49. West southwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 49 °F

    Chance Rain

  • Monday

    Monday: Mostly sunny, with a high near 69. West northwest wind around 10 mph.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 47. Calm wind.
Friday
Mostly sunny, with a high near 81. Calm wind becoming east northeast around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 48. East northeast wind around 6 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 87. Southwest wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 52. South southwest wind around 8 mph.
Sunday
Mostly sunny, with a high near 83. South southwest wind 8 to 16 mph, with gusts as high as 26 mph.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 49. West southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 69. West northwest wind around 10 mph.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.49°N 111.31°W (Elev. 3399 ft)
2:08 am MDT Sep 19, 2025
3am MDT Sep 19, 2025-6pm MDT Sep 25, 2025
 
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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