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September 13th, 2025 :: 2:01 pm MDT   

Local Weather Report for
Lewistown
Montana, United States

 Current Lewistown Weather Conditions Updated September 13th at 12:54 pm 
Temperature:68°F Dew Point:46°F
Barometer:29.98 inHg Wind:N 17 Mph
Humidity:45.9% Visibility:0M
 
 Lewistown Weather Forecast Summary  
 
Today
Sep 13th
Sunday
Sep 14th
Monday
Sep 15th
Tuesday
Sep 16th
Wednesday
Sep 17th
Cloudy Cloudy Cloudy Showers Sunny
63°F
75°F
54°F
68°F
56°F
68°F
54°F
74°F
53°F
 
 Lewistown Detailed Weather Forecast  
 
Saturday, September 13th, 2025
Afternoon Temperature: 62°F
Cloudy with sunny periods with a chance of showers.
Evening Temperature: 55°F
Clear with cloudy periods.
Sunday, September 14th, 2025
Overnight Temperature: 54°F
Clear.
Morning Temperature: 69°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 74°F
A mix of cloud and sun.
Evening Temperature: 61°F
Cloudy.
Monday, September 15th, 2025
Overnight Temperature: 58°F
Cloudy.
Morning Temperature: 66°F
Cloudy with a slight chance of showers. Windy.
Afternoon Temperature: 64°F
Cloudy with a slight chance of showers. Windy at times.
Evening Temperature: 57°F
Cloudy with a chance of showers. Windy at times.
Tuesday, September 16th, 2025
Overnight Temperature: 54°F
Cloudy with showers likely. Windy.
Morning Temperature: 62°F
Cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 67°F
Mostly sunny with a chance of showers.
Evening Temperature: 56°F
Clear.
Wednesday, September 17th, 2025
Overnight Temperature: 54°F
Clear.
Morning Temperature: 68°F
Sunny.
Afternoon Temperature: 70°F
Sunny. Windy at times.
Evening Temperature: 57°F
Clear.
Thursday, September 18th, 2025
Overnight Temperature: 53°F
Clear.
Morning Temperature: 72°F
Sunny. Windy at times.
Afternoon Temperature: 74°F
A mix of cloud and sun.
Evening Temperature: 63°F
Cloudy.
Friday, September 19th, 2025
Overnight Temperature: 58°F
A mix of cloudy and clear skies.
Morning Temperature: 66°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 68°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 56°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Saturday, September 20th, 2025
Overnight Temperature: 51°F
Clear with a chance of showers.
Morning Temperature: 65°F
A mix of cloud and sun.
Afternoon Temperature: 70°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 57°F
Cloudy.
Sunday, September 21st, 2025
Overnight Temperature: 55°F
A mix of clear and cloudy skies.
Morning Temperature: 71°F
Cloudy. Windy.
Afternoon Temperature: 74°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 64°F
Cloudy.





 

  [ Local Weather Report ]
Harlowton, MT 
 
Malmstrom, MT 
12:55 PM  73°F
 
 
Black Eagle, MT 
12:55 PM  73°F
 
 
Great Falls, MT 
12:53 PM  75°F
 
 
Billings, MT 
12:53 PM  64°F
Mostly Cloudy
 
Lockwood, MT 
12:53 PM  64°F
Mostly Cloudy
 
Laurel, MT 
 
Livingston, MT 
12:53 PM  66°F
 
 
Havre, MT 
12:53 PM  66°F
 
 
Bozeman, MT 
12:56 PM  66°F
 

This WeatherCity Weather Forecast for Lewistown, 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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