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.

Clear

41°F

5°C

Humidity 85%
Wind Speed SW 8 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 03 Oct 06:53 AM MDT
Extended Forecast for

Great Falls MT

  • Today

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

    High: 69 °F

    Mostly Sunny

  • Tonight

    Tonight: 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 76. Light and variable wind.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. Light and variable wind becoming south southwest 5 to 9 mph after midnight.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. South southwest wind 10 to 18 mph, with gusts as high as 31 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49. Southwest wind 3 to 5 mph.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 69. Calm wind becoming east 5 to 7 mph in the afternoon.
Tonight
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 76. Light and variable wind.
Sunday Night
Mostly clear, with a low around 50. Light and variable wind becoming south southwest 5 to 9 mph after midnight.
Monday
Sunny, with a high near 84. South southwest wind 10 to 18 mph, with gusts as high as 31 mph.
Monday Night
Mostly clear, with a low around 52. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 79. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 49. Southwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 51.
Friday
Mostly sunny, with a high near 78. Breezy.
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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:
4:11 am MDT Oct 3, 2026
Forecast Valid:
7am MDT Oct 3, 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