125  
CDUS43 KLOT 202133  
CLIMDW  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE CHICAGO IL  
433 PM CDT THU AUG 20 2026  
   
...............................
 
 
   
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 20 2026
 
 
VALID TODAY AS OF 0400 PM LOCAL TIME.  
 
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)  
TODAY  
MAXIMUM 78 2:59 PM 98 1947 82 -4 77  
MINIMUM 65 5:49 AM 47 1950 66 -1 70  
AVERAGE 72 74 -2 74  
 
PRECIPITATION (IN)  
TODAY 0.00 1.47 1951 0.12 -0.12 0.00  
MONTH TO DATE 4.37 2.59 1.78 2.81  
SINCE JUN 1 17.89 10.15 7.74 14.84  
SINCE JAN 1 31.78 22.63 9.15 24.41  
 
DEGREE DAYS  
HEATING  
TODAY 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  
TODAY 7 9 -2 9  
MONTH TO DATE 205 205 0 276  
SINCE JUN 1 792 780 12 1044  
SINCE JAN 1 876 862 14 1095    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NE (40)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION NE (40)  
AVERAGE WIND SPEED 8.0  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED TODAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 75 6:00 AM  
LOWEST 47 11:00 AM  
AVERAGE 61  
   
......................................................
 
 
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 82 99 1955  
MINIMUM TEMPERATURE (F) 66 46 1950  
 
SUNRISE AND SUNSET  
AUGUST 20 2026........SUNRISE 6:05 AM CDT SUNSET 7:43 PM CDT  
AUGUST 21 2026........SUNRISE 6:06 AM CDT SUNSET 7:42 PM CDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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