Currently: 38 °F. Passing clouds. (Weather station: Chicago Midway Airport, USA). See more current weatherAnnual Weather Averages in Chicago Midway Airport
Chicago Midway Airport is 40 miles from Waukegan, so the actual climate in Waukegan can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Waukegan
High Temp: 85 °F
Low Temp: 20 °F
Mean Temp: 52 °F
Precipitation: 2.92"
Humidity: 66%
Dew Point: 40 °F
Wind: 16 mph
Pressure: 30.04 "Hg
Visibility: 9 mi
January Climate & Weather Averages in Waukegan
High Temp: 33 °F
Low Temp: 20 °F
Mean Temp: 26 °F
Precipitation: 1.75"
Humidity: 74%
Dew Point: 19 °F
Wind: 18 mph
Pressure: 30.12 "Hg
Visibility: 8 mi
February Climate & Weather Averages in Waukegan
High Temp: 36 °F
Low Temp: 22 °F
Mean Temp: 29 °F
Precipitation: 1.76"
Humidity: 70%
Dew Point: 20 °F
Wind: 18 mph
Pressure: 30.12 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Waukegan
High Temp: 47 °F
Low Temp: 31 °F
Mean Temp: 39 °F
Precipitation: 2.14"
Humidity: 65%
Dew Point: 28 °F
Wind: 18 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
April Climate & Weather Averages in Waukegan
High Temp: 59 °F
Low Temp: 41 °F
Mean Temp: 50 °F
Precipitation: 3.49"
Humidity: 60%
Dew Point: 36 °F
Wind: 18 mph
Pressure: 29.99 "Hg
Visibility: 9 mi
May Climate & Weather Averages in Waukegan
High Temp: 71 °F
Low Temp: 51 °F
Mean Temp: 61 °F
Precipitation: 4.00"
Humidity: 62%
Dew Point: 47 °F
Wind: 16 mph
Pressure: 29.98 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Waukegan
High Temp: 81 °F
Low Temp: 62 °F
Mean Temp: 72 °F
Precipitation: 4.09"
Humidity: 63%
Dew Point: 58 °F
Wind: 14 mph
Pressure: 29.93 "Hg
Visibility: 9 mi
July Climate & Weather Averages in Waukegan
High Temp: 85 °F
Low Temp: 68 °F
Mean Temp: 76 °F
Precipitation: 3.47"
Humidity: 63%
Dew Point: 62 °F
Wind: 13 mph
Pressure: 29.96 "Hg
Visibility: 10 mi
August Climate & Weather Averages in Waukegan
High Temp: 83 °F
Low Temp: 67 °F
Mean Temp: 75 °F
Precipitation: 3.94"
Humidity: 66%
Dew Point: 62 °F
Wind: 12 mph
Pressure: 29.99 "Hg
Visibility: 9 mi
September Climate & Weather Averages in Waukegan
High Temp: 76 °F
Low Temp: 59 °F
Mean Temp: 68 °F
Precipitation: 2.73"
Humidity: 63%
Dew Point: 54 °F
Wind: 14 mph
Pressure: 30.02 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Waukegan
High Temp: 63 °F
Low Temp: 47 °F
Mean Temp: 55 °F
Precipitation: 3.50"
Humidity: 64%
Dew Point: 43 °F
Wind: 16 mph
Pressure: 30.04 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Waukegan
High Temp: 49 °F
Low Temp: 35 °F
Mean Temp: 42 °F
Precipitation: 2.25"
Humidity: 67%
Dew Point: 32 °F
Wind: 17 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Waukegan
High Temp: 38 °F
Low Temp: 25 °F
Mean Temp: 32 °F
Precipitation: 1.98"
Humidity: 73%
Dew Point: 24 °F
Wind: 17 mph
Pressure: 30.10 "Hg
Visibility: 8 mi