773  
CDUS43 KLOT 220633  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
133 AM CDT SAT AUG 22 2026  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 21 2026
 
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1928 TO 2026  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 80 2:31 PM 99 1955 82 -2 78  
MINIMUM 62 5:17 AM 46 1950 66 -4 66  
AVERAGE 71 74 -3 72  
 
PRECIPITATION (IN)  
YESTERDAY T 1.58 1975 0.13 -0.13 0.00  
MONTH TO DATE 4.37 2.72 1.65 2.81  
SINCE JUN 1 17.89 10.28 7.61 14.84  
SINCE JAN 1 31.78 22.76 9.02 24.41  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 3 25 -22 9  
SINCE JUL 1 0 1 -1 0  
 
COOLING  
YESTERDAY 6 9 -3 7  
MONTH TO DATE 211 214 -3 283  
SINCE JUN 1 798 789 9 1051  
SINCE JAN 1 882 871 11 1102    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION SW (210)  
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION S (190)  
AVERAGE WIND SPEED 6.4  
 
SKY COVER  
AVERAGE SKY COVER 0.6  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
THUNDERSTORM  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 87 3:00 AM  
LOWEST 56 2:00 PM  
AVERAGE 72  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 103 1936  
MINIMUM TEMPERATURE (F) 66 51 1928  
 
SUNRISE AND SUNSET  
AUGUST 22 2026........SUNRISE 6:07 AM CDT SUNSET 7:40 PM CDT  
AUGUST 23 2026........SUNRISE 6:08 AM CDT SUNSET 7:39 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