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September 18th, 2025 :: 10:58 pm EDT   

Local Weather Report for
Decatur
Indiana, United States

 Decatur Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Mostly Sunny Cloudy Cloudy Cloudy Showers
89°F
92°F
64°F
88°F
62°F
93°F
64°F
85°F
64°F
 
 Decatur Detailed Weather Forecast  
 
Thursday, September 18th, 2025
Evening Temperature: 68°F
Clear.
Friday, September 19th, 2025
Overnight Temperature: 64°F
Clear.
Morning Temperature: 86°F
Sunny.
Afternoon Temperature: 84°F
Mostly sunny. Windy at times.
Evening Temperature: 66°F
Cloudy. Windy at times.
Saturday, September 20th, 2025
Overnight Temperature: 62°F
Cloudy.
Morning Temperature: 79°F
Cloudy. Slight chance of a thunderstorm.
Afternoon Temperature: 79°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 63°F
Cloudy.
Sunday, September 21st, 2025
Overnight Temperature: 66°F
Cloudy.
Morning Temperature: 88°F
Cloudy. Windy at times.
Afternoon Temperature: 83°F
Cloudy. Windy at times.
Evening Temperature: 67°F
Cloudy with a chance of showers.
Monday, September 22nd, 2025
Overnight Temperature: 65°F
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 76°F
A mix of cloud and sun. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 82°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 65°F
Cloudy with showers likely. Windy at times.
Tuesday, September 23rd, 2025
Overnight Temperature: 65°F
Cloudy with a chance of showers.
Morning Temperature: 81°F
Cloudy with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 84°F
Cloudy. Chance of a thunderstorm. Windy.
Evening Temperature: 68°F
Cloudy with showers likely.
Wednesday, September 24th, 2025
Overnight Temperature: 67°F
Cloudy with a slight chance of showers. Windy at times.
Morning Temperature: 73°F
Cloudy. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 67°F
Cloudy with showers likely. Windy at times.
Evening Temperature: 65°F
Cloudy with periods of rain. Slight chance of a thunderstorm.
Thursday, September 25th, 2025
Overnight Temperature: 64°F
Cloudy with a few showers.
Morning Temperature: 66°F
Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 69°F
Sunny with cloudy periods with showers likely. Chance of a thunderstorm. Windy at times.
Evening Temperature: 60°F
Cloudy.
Friday, September 26th, 2025
Overnight Temperature: 60°F
Cloudy with a chance of showers.
Morning Temperature: 67°F
Sunny with cloudy periods with showers likely. Windy.
Afternoon Temperature: 67°F
Sunny. Windy at times.
Evening Temperature: 58°F
Clear.





 

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This WeatherCity Weather Forecast for Decatur, Indiana, 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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