Dangerous Heat and Heavy Rainfall into the Weekend
Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >
Current conditions at
Great Falls, Great Falls International Airport (KGTF)
Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.
Clear
52°F
11°C
| Humidity | 81% |
| Wind Speed | WNW 3 MPH |
| Barometer | 30.19 in (1022.35 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 20 Sep 08:35 AM MDT |
Extended Forecast for
Great Falls MT
Today
High: 75 °F
Sunny
Tonight
Low: 47 °F
Mostly Clear
Monday
High: 81 °F
Sunny
Monday Night
Low: 49 °F
Mostly Clear
Tuesday
High: 83 °F
Sunny
Tuesday Night
Low: 52 °F
Partly Cloudy
Wednesday
High: 82 °F
Mostly Sunny
Wednesday Night
Low: 51 °F
Partly Cloudy
Thursday
High: 80 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 75. Light and variable wind.
Tonight
Mostly clear, with a low around 47. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 81. Light south wind.
Monday Night
Mostly clear, with a low around 49. South southeast wind around 6 mph.
Tuesday
Sunny, with a high near 83. Southwest wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 52. Light and variable wind becoming east southeast around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 82. Light southwest wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 51. West wind 5 to 10 mph becoming light south southwest after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 67.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Great Falls MT
47.51°N 111.31°W (Elev. 3399 ft)
47.51°N 111.31°W (Elev. 3399 ft)
3:42 am MDT Sep 20, 2026
8am MDT Sep 20, 2026-6pm MDT Sep 26, 2026
Additional Resources
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