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

57°F

14°C

Humidity 54%
Wind Speed WSW 3 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 41°F (5°C)
Visibility 8.00 mi
Last update 04 Oct 10:53 AM MDT
Extended Forecast for

Great Falls International Airport MT

  • Today

    Today: Sunny, with a high near 79. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. East southeast wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 18 mph.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 83. Southwest wind 13 to 20 mph, with gusts as high as 36 mph.

    High: 83 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. Southwest wind 9 to 14 mph, with gusts as high as 26 mph.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Southwest wind 7 to 9 mph, with gusts as high as 18 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. West wind around 6 mph becoming south southwest after midnight.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. Southwest wind around 7 mph becoming northwest in the afternoon.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. North northeast wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 79. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Tonight
Mostly clear, with a low around 50. East southeast wind 7 to 13 mph becoming southwest after midnight. Winds could gust as high as 18 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 83. Southwest wind 13 to 20 mph, with gusts as high as 36 mph.
Monday Night
Mostly clear, with a low around 48. Southwest wind 9 to 14 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 77. Southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 44. West wind around 6 mph becoming south southwest after midnight.
Wednesday
Sunny, with a high near 75. Southwest wind around 7 mph becoming northwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 41. North northeast wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 75.
Friday Night
Mostly cloudy, with a low around 42.
Saturday
A chance of rain. Mostly cloudy, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls International Airport MT
 47.46°N 111.4°W (Elev. 3599 ft)
Last Update:
10:21 am MDT Oct 4, 2026
Forecast Valid:
11am MDT Oct 4, 2026-6pm MDT Oct 10, 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