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
45°F
7°C
| Humidity | 93% |
| Wind Speed | SSW 3 MPH |
| Barometer | 30.18 in (1022.01 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 20 Sep 06:35 AM MDT |
Extended Forecast for
8 Miles S Ulm MT
Today
High: 72 °F
Sunny
Tonight
Low: 46 °F
Mostly Clear
Monday
High: 79 °F
Sunny
Monday Night
Low: 48 °F
Clear
Tuesday
High: 80 °F
Sunny
Tuesday Night
Low: 50 °F
Partly Cloudy
Wednesday
High: 79 °F
Mostly Sunny
Wednesday Night
Low: 49 °F
Partly Cloudy
Thursday
High: 78 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 72. Light and variable wind.
Tonight
Mostly clear, with a low around 46. Light and variable wind becoming south southeast around 6 mph after midnight.
Monday
Sunny, with a high near 79. South southwest wind 3 to 6 mph.
Monday Night
Clear, with a low around 48. South wind 6 to 9 mph.
Tuesday
Sunny, with a high near 80. South wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 50. South southwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 79. South wind 5 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 49. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 81.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
A slight chance of rain. Mostly sunny, with a high near 65.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
8 Miles S Ulm MT
47.31°N 111.52°W (Elev. 3599 ft)
47.31°N 111.52°W (Elev. 3599 ft)
3:42 am MDT Sep 20, 2026
6am MDT Sep 20, 2026-6pm MDT Sep 26, 2026
Additional Resources
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