Current Conditions
More Information
WeatherCity Home
Switch to Metric Units
[ Almanac ]  
Sunrise:  7:06 am
Sunset:  6:15 pm
[ Moon Phases ]  

First Quarter
Oct 19

Full Moon
Oct 26

Last Quarter
Nov 3

New Moon
Nov 10




October 15th, 2026 :: 4:17 pm CDT   

Local Weather Report for
Dekalb
Illinois, United States

 Current Dekalb Weather Conditions Updated October 15th at 2:55 pm 
heavy rain
Temperature:59°F Dew Point:59°F
Barometer:29.89 inHg Wind:N 15 Mph
Humidity:100.0% Visibility:0M
 
 Dekalb Weather Forecast Summary  
 
Today
Oct 15th
Friday
Oct 16th
Saturday
Oct 17th
Sunday
Oct 18th
Monday
Oct 19th
Cloudy Mix of Sun and Cloud Sunny Sunny Mostly Sunny
59°F
51°F
41°F
52°F
34°F
59°F
40°F
61°F
44°F
 
 Dekalb Detailed Weather Forecast  
 
Thursday, October 15th, 2026
Evening Temperature: 58°F
Cloudy with a chance of showers. Windy at times.
Friday, October 16th, 2026
Overnight Temperature: 50°F
A mix of cloudy and clear skies with a chance of showers. Windy.
Morning Temperature: 45°F
Sunny with cloudy periods. Windy.
Afternoon Temperature: 49°F
A mix of sun and cloud with a slight chance of showers. Windy.
Evening Temperature: 43°F
Clear with cloudy periods. Windy.
Saturday, October 17th, 2026
Overnight Temperature: 36°F
Clear. Windy at times.
Morning Temperature: 38°F
Sunny.
Afternoon Temperature: 52°F
Sunny. Windy at times.
Evening Temperature: 44°F
Clear.
Sunday, October 18th, 2026
Overnight Temperature: 42°F
Clear. Windy at times.
Morning Temperature: 44°F
Sunny. Windy at times.
Afternoon Temperature: 58°F
Sunny. Windy.
Evening Temperature: 48°F
Clear.
Monday, October 19th, 2026
Overnight Temperature: 45°F
Clear.
Morning Temperature: 48°F
Mostly sunny. Windy at times.
Afternoon Temperature: 61°F
A mix of sun and cloud. Windy at times.
Evening Temperature: 54°F
A mix of cloudy and clear skies.
Tuesday, October 20th, 2026
Overnight Temperature: 52°F
A mix of cloudy and clear skies.
Morning Temperature: 54°F
A mix of cloud and sun.
Afternoon Temperature: 65°F
Sunny.
Evening Temperature: 55°F
Clear.
Wednesday, October 21st, 2026
Overnight Temperature: 51°F
Clear.
Morning Temperature: 54°F
Sunny.
Afternoon Temperature: 65°F
Sunny.
Evening Temperature: 55°F
Clear.
Thursday, October 22nd, 2026
Overnight Temperature: 51°F
Mostly clear.
Morning Temperature: 53°F
Mostly sunny.
Afternoon Temperature: 64°F
A mix of cloud and sun.
Evening Temperature: 56°F
Mostly clear.
Friday, October 23rd, 2026
Overnight Temperature: 53°F
Clear with cloudy periods.
Morning Temperature: 54°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 65°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 59°F
Clear with cloudy periods. Windy at times.





 

  [ Local Weather Report ]
De Kalb, IL 
2:55 PM  59°F
heavy rain
 
Sycamore, IL 
2:55 PM  59°F
heavy rain
 
Genoa, IL 
 
Rochelle, IL 
2:55 PM  61°F
moderate rain
 
Sandwich, IL 
 
Plano, IL 
 
Batavia, IL 
2:52 PM  63°F
Overcast
 
Geneva, IL 
2:52 PM  63°F
Overcast
 
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

  Dekalb weather brought to you by WeatherCity Server: us-chi1   Rendered in 0.00258s  
Home   |   About WeatherCity