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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

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

Mostly Cloudy

73°F

23°C

Humidity 33%
Wind Speed WNW 12 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 02 Oct 04:10 PM MDT
Extended Forecast for

Great Falls MT

  • Tonight

    Tonight: Partly cloudy, with a low around 46. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Calm wind becoming east northeast 5 to 7 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. East northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 78. Calm wind.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. Light and variable wind becoming south southwest 5 to 9 mph after midnight.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85. South southwest wind 10 to 20 mph, with gusts as high as 33 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 80. West wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 80 °F

    Sunny

  • Tuesday Night

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

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.
Saturday
Mostly sunny, with a high near 69. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 41. East northeast wind 5 to 7 mph becoming calm in the evening.
Sunday
Sunny, with a high near 78. Calm wind.
Sunday Night
Mostly clear, with a low around 52. Light and variable wind becoming south southwest 5 to 9 mph after midnight.
Monday
Sunny, with a high near 85. South southwest wind 10 to 20 mph, with gusts as high as 33 mph.
Monday Night
Partly cloudy, with a low around 53. Southwest wind 9 to 11 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 80. West wind 6 to 10 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 50.
Friday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.49°N 111.31°W (Elev. 3399 ft)
Last Update:
12:31 pm MDT Oct 2, 2026
Forecast Valid:
4pm MDT Oct 2, 2026-6pm MDT Oct 9, 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