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September 16th, 2025 :: 5:57 am CDT   

Local Weather Report for
Dekalb
Illinois, United States

 Current Dekalb Weather Conditions Updated September 16th at 4:55 am 
mist
Temperature:59°F Dew Point:59°F
Barometer:30.21 inHg Wind:N 9 Mph
Humidity:100.0% Visibility:0M
 
 Dekalb Weather Forecast Summary  
 
Today
Sep 16th
Wednesday
Sep 17th
Thursday
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunny Mix of Cloud and Sun Cloudy Cloudy Cloudy
81°F
82°F
59°F
85°F
61°F
83°F
61°F
83°F
60°F
 
 Dekalb Detailed Weather Forecast  
 
Tuesday, September 16th, 2025
Morning Temperature: 76°F
Sunny.
Afternoon Temperature: 75°F
Sunny.
Evening Temperature: 62°F
Clear.
Wednesday, September 17th, 2025
Overnight Temperature: 59°F
A mix of cloudy and clear skies.
Morning Temperature: 77°F
A mix of cloud and sun.
Afternoon Temperature: 76°F
A mix of cloud and sun.
Evening Temperature: 63°F
A mix of cloudy and clear skies.
Thursday, September 18th, 2025
Overnight Temperature: 61°F
Clear.
Morning Temperature: 78°F
A mix of cloud and sun.
Afternoon Temperature: 79°F
Cloudy. Windy at times.
Evening Temperature: 64°F
Clear.
Friday, September 19th, 2025
Overnight Temperature: 64°F
Cloudy.
Morning Temperature: 79°F
Cloudy. Windy at times.
Afternoon Temperature: 67°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 62°F
Cloudy with a chance of showers.
Saturday, September 20th, 2025
Overnight Temperature: 60°F
Cloudy.
Morning Temperature: 74°F
Cloudy. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 80°F
Cloudy with sunny periods. Chance of a thunderstorm. Windy at times.
Evening Temperature: 67°F
Cloudy with a slight chance of showers. Windy at times.
Sunday, September 21st, 2025
Overnight Temperature: 64°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 79°F
Cloudy with showers likely. Chance of a thunderstorm. Windy.
Afternoon Temperature: 83°F
Cloudy. Chance of a thunderstorm. Windy at times.
Evening Temperature: 71°F
A mix of cloudy and clear skies with a slight chance of showers. Windy at times.
Monday, September 22nd, 2025
Overnight Temperature: 66°F
Cloudy with a chance of showers. Windy at times.
Morning Temperature: 67°F
Cloudy with a few showers. Slight chance of a thunderstorm. Windy at times.
Afternoon Temperature: 66°F
Cloudy with a few showers. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 64°F
A mix of cloudy and clear skies with a chance of showers or thundershowers. Windy at times.
Tuesday, September 23rd, 2025
Overnight Temperature: 55°F
Clear.
Morning Temperature: 72°F
Sunny. Windy at times.
Afternoon Temperature: 73°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 67°F
Clear. Windy at times.
Wednesday, September 24th, 2025
Overnight Temperature: 65°F
Clear. Windy at times.
Morning Temperature: 76°F
Sunny. Windy at times.
Afternoon Temperature: 75°F
Sunny.
Evening Temperature: 64°F
Clear.





 

  [ Local Weather Report ]
De Kalb, IL 
4:55 AM  59°F
mist
 
Sycamore, IL 
4:55 AM  59°F
mist
 
Genoa, IL 
4:55 AM  59°F
mist
 
Rochelle, IL 
4:55 AM  57°F
 
 
Sandwich, IL 
4:50 AM  59°F
mist
 
Plano, IL 
4:50 AM  59°F
mist
 
Batavia, IL 
4:52 AM  57°F
mist
 
Geneva, IL 
4:52 AM  57°F
mist
 
Marengo, IL 
 
Belvidere, IL 

This WeatherCity Weather Forecast for Dekalb, 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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