057  
CDUS43 KLOT 160636  
CLIDPA  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
136 AM CDT SUN AUG 16 2026  
   
...............................  
 
...THE DUPAGE AIRPORT CLIMATE SUMMARY FOR AUGUST 15 2026...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1997 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................  
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 79 5:57 PM 91 2025 82 -3 91  
MINIMUM 70 4:27 AM 44 2004 62 8 64  
AVERAGE 75 72 3 78  
 
PRECIPITATION (IN)  
YESTERDAY 0.16 0.66 2018 0.13 0.03 0.00  
MONTH TO DATE 4.15 1.90 2.25 0.29  
SINCE JUN 1 16.19 9.17 7.02 9.90  
SINCE JAN 1 29.07 21.43 7.64 17.96  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 25 37 -12 18  
SINCE JUL 1 1 4 -3 0  
 
COOLING  
YESTERDAY 10 7 3 13  
MONTH TO DATE 128 119 9 158  
SINCE JUN 1 589 566 23 790  
SINCE JAN 1 648 622 26 823    
...............................................................  
 
WIND (MPH)  
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 3.9  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
LIGHT RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 100 8:00 AM  
LOWEST 84 12:00 AM  
AVERAGE 92  
   
......................................................  
 
THE DUPAGE AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 95 2025  
MINIMUM TEMPERATURE (F) 62 49 2004  
 
SUNRISE AND SUNSET  
AUGUST 16 2026........SUNRISE 6:02 AM CDT SUNSET 7:52 PM CDT  
AUGUST 17 2026........SUNRISE 6:03 AM CDT SUNSET 7:50 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab IL Page
The Nexlab IN Page
Main Text Page