103
CDUS43 KLOT 182134
CLIMDW
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
434 PM CDT TUE AUG 18 2026
...............................
..THE CHICAGO-MIDWAY CLIMATE SUMMARY FOR AUGUST 18 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 81 11:29 AM 99 1936 83 -2 88
MINIMUM 66 5:25 AM 49 1963 66 0 54
AVERAGE 74 74 0 71
PRECIPITATION (IN)
TODAY 0.00 1.80 1954 0.14 -0.14 0.47
MONTH TO DATE 4.17 2.34 1.83 2.79
SINCE JUN 1 17.69 9.90 7.79 14.82
SINCE JAN 1 31.58 22.38 9.20 24.39
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 9 10 -1 16
MONTH TO DATE 190 187 3 256
SINCE JUN 1 777 762 15 1024
SINCE JAN 1 861 844 17 1075
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 8.8
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 6:00 AM
LOWEST 58 11:00 AM
AVERAGE 73
......................................................
THE CHICAGO-MIDWAY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 99 1947
1983
MINIMUM TEMPERATURE (F) 66 49 1933
SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE 6:02 AM CDT SUNSET 7:46 PM CDT
AUGUST 19 2026........SUNRISE 6:04 AM CDT SUNSET 7:45 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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