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Climate & Weather Averages in Great Lakes, Illinois, USA

Currently: 53 °F. Overcast. (Weather station: Chicago Midway Airport, USA). See more current weather

Annual Weather Averages in Chicago Midway Airport

Chicago Midway Airport is 36 miles from Great Lakes, so the actual climate in Great Lakes can vary a bit.

Based on weather reports collected during 1992–2021.

Jan
33
20
1.75
Feb
36
22
1.76
Mar
47
31
2.14
Apr
59
41
3.49
May
71
51
4
Jun
81
62
4.09
Jul
85
68
3.47
Aug
83
67
3.94
Sep
76
59
2.73
Oct
63
47
3.5
Nov
49
35
2.25
Dec
38
25
1.98

All Year Climate & Weather Averages in Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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 Great Lakes

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

Quick Climate Info

Hottest MonthJuly (76 °F avg)
Coldest MonthJanuary (26 °F avg)
Wettest MonthJune (4.09" avg)
Windiest MonthJanuary (18 mph avg)
Annual precip.35.09" (per year)

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