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June 9th, 2026 :: 6:25 am CDT   

Local Weather Report for
Decatur
Illinois, United States

 Current Decatur Weather Conditions Updated June 9th at 4:54 am 
Mostly Sunny
Temperature:72°F Dew Point:72°F
Barometer:29.98 inHg Wind:calm
Humidity:100.0% Visibility:0M
 
 Decatur Weather Forecast Summary  
 
Today
Jun 9th
Wednesday
Jun 10th
Thursday
Jun 11th
Friday
Jun 12th
Saturday
Jun 13th
Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
89°F
90°F
75°F
91°F
74°F
78°F
62°F
79°F
60°F
 
 Decatur Detailed Weather Forecast  
 
Tuesday, June 9th, 2026
Morning Temperature: 78°F
Sunny with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 89°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 80°F
Clear with a chance of showers or thundershowers.
Wednesday, June 10th, 2026
Overnight Temperature: 75°F
Clear with a chance of showers or thundershowers.
Morning Temperature: 81°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 90°F
A mix of sun and cloud. Chance of a thunderstorm. Windy.
Evening Temperature: 81°F
A mix of clear and cloudy skies with a chance of showers or thundershowers. Windy.
Thursday, June 11th, 2026
Overnight Temperature: 76°F
Mostly clear with a chance of showers or thundershowers. Windy at times.
Morning Temperature: 80°F
Sunny with a slight chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 90°F
Sunny. Chance of a thunderstorm. Windy.
Evening Temperature: 83°F
Mostly clear. Chance of a thunderstorm. Windy.
Friday, June 12th, 2026
Overnight Temperature: 65°F
A mix of clear and cloudy skies with a chance of showers. Windy at times.
Morning Temperature: 66°F
Sunny with a chance of showers.
Afternoon Temperature: 77°F
Sunny. Windy at times.
Evening Temperature: 69°F
Clear.
Saturday, June 13th, 2026
Overnight Temperature: 61°F
Clear.
Morning Temperature: 68°F
Sunny with cloudy periods.
Afternoon Temperature: 79°F
A mix of sun and cloud.
Evening Temperature: 72°F
Mostly clear.
Sunday, June 14th, 2026
Overnight Temperature: 66°F
Clear with cloudy periods.
Morning Temperature: 69°F
Mostly cloudy with a slight chance of showers or thundershowers.
Afternoon Temperature: 66°F
Cloudy with showers likely.
Evening Temperature: 65°F
A mix of cloudy and clear skies with a chance of showers.
Monday, June 15th, 2026
Overnight Temperature: 62°F
Mostly clear.
Morning Temperature: 63°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 71°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 63°F
A mix of cloudy and clear skies.
Tuesday, June 16th, 2026
Overnight Temperature: 55°F
Mostly clear.
Morning Temperature: 62°F
A mix of cloud and sun.
Afternoon Temperature: 72°F
Mostly sunny with a chance of showers. Slight chance of a thunderstorm.
Evening Temperature: 66°F
Mostly clear with a chance of showers. Slight chance of a thunderstorm.
Wednesday, June 17th, 2026
Overnight Temperature: 59°F
A mix of cloudy and clear skies.
Morning Temperature: 63°F
A mix of cloud and sun with a chance of showers. Slight chance of a thunderstorm.
Afternoon Temperature: 69°F
A mix of cloud and sun with a chance of showers. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 66°F
Clear with cloudy periods with a slight chance of showers or thundershowers.





 

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This WeatherCity Weather Forecast for Decatur, Illinois, 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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