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September 18th, 2025 :: 3:39 pm MDT   

Local Weather Report for
Great Falls
Montana, United States

 Current Great Falls Weather Conditions Updated September 18th at 2:53 pm 
Temperature:77°F Dew Point:45°F
Barometer:30.01 inHg Wind:N 13 Mph
Humidity:31.6% Visibility:0M
 
 Great Falls Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Sunny Cloudy Cloudy Cloudy Cloudy
78°F
79°F
56°F
85°F
59°F
74°F
55°F
68°F
47°F
 
 Great Falls Detailed Weather Forecast  
 
Thursday, September 18th, 2025
Evening Temperature: 63°F
Clear.
Friday, September 19th, 2025
Overnight Temperature: 57°F
Mostly clear.
Morning Temperature: 71°F
Cloudy.
Afternoon Temperature: 79°F
Cloudy.
Evening Temperature: 64°F
Clear.
Saturday, September 20th, 2025
Overnight Temperature: 60°F
Clear.
Morning Temperature: 76°F
Cloudy. Windy.
Afternoon Temperature: 82°F
Sunny. Windy at times.
Evening Temperature: 67°F
Clear. Windy at times.
Sunday, September 21st, 2025
Overnight Temperature: 66°F
Clear. Windy.
Morning Temperature: 70°F
Cloudy. Wind 25 to 40 mph.
Afternoon Temperature: 67°F
Sunny. Wind 20 to 30 mph.
Evening Temperature: 56°F
Clear. Wind 20 to 30 mph.
Monday, September 22nd, 2025
Overnight Temperature: 48°F
Cloudy with a slight chance of showers. Windy.
Morning Temperature: 60°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 68°F
Sunny.
Evening Temperature: 54°F
Clear.
Tuesday, September 23rd, 2025
Overnight Temperature: 51°F
Clear.
Morning Temperature: 71°F
Sunny.
Afternoon Temperature: 82°F
Sunny.
Evening Temperature: 63°F
Clear.
Wednesday, September 24th, 2025
Overnight Temperature: 58°F
Clear.
Morning Temperature: 75°F
Sunny.
Afternoon Temperature: 84°F
Sunny.
Evening Temperature: 66°F
Cloudy.
Thursday, September 25th, 2025
Overnight Temperature: 60°F
Cloudy.
Morning Temperature: 69°F
Cloudy.
Afternoon Temperature: 77°F
Sunny with cloudy periods.
Evening Temperature: 64°F
A mix of cloudy and clear skies.
Friday, September 26th, 2025
Overnight Temperature: 58°F
Cloudy.
Morning Temperature: 55°F
Cloudy with a chance of showers. Windy.
Afternoon Temperature: 46°F
Cloudy with a few showers.
Evening Temperature: 46°F
Cloudy with showers likely.





 

  [ Local Weather Report ]
Black Eagle, MT 
2:55 PM  75°F
 
 
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2:55 PM  75°F
 
 
East Helena, MT 
2:53 PM  73°F
 
 
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2:53 PM  73°F
 
 
Cut Bank, MT 
2:56 PM  75°F
 
 
Lewistown, MT 
2:54 PM  73°F
 
 
Drummond, MT 
 
Harlowton, MT 
 
Havre, MT 
2:53 PM  75°F
 
 
Browning, MT 

This WeatherCity Weather Forecast for Great Falls, Montana, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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