North America » United States » Joliet, IL » Joliet, IL Weather

Joliet, IL Weather

Overview Scores Fors & Againsts Weather Photos

Joliet has a hot summer humid continental climate with hot, humid summers, and cold winters with moderate to heavy snowfall.

Average Temperature

Jan

30 °F
-1 °C

Feb

29 °F
-2 °C

Mar

41 °F
5 °C

Apr

55 °F
13 °C

May

68 °F
20 °C

Jun

76 °F
25 °C

Jul

86 °F
30 °C

Aug

79 °F
26 °C

Sep

76 °F
25 °C

Oct

59 °F
15 °C

Nov

39 °F
4 °C

Dec

39 °F
4 °C

Humidity

Jan

71%

Feb

67%

Mar

62%

Apr

63%

May

77%

Jun

74%

Jul

76%

Aug

76%

Sep

83%

Oct

75%

Nov

72%

Dec

73%

Rain

Jan

33mm

Feb

50mm

Mar

56mm

Apr

54mm

May

205mm

Jun

126mm

Jul

163mm

Aug

82mm

Sep

156mm

Oct

115mm

Nov

30mm

Dec

39mm

Clouds

Jan

64%

Feb

71%

Mar

61%

Apr

51%

May

69%

Jun

50%

Jul

24%

Aug

38%

Sep

47%

Oct

47%

Nov

65%

Dec

56%

Air quality US AQI

Jan

41

Feb

42

Mar

38

Apr

36

May

40

Jun

39

Jul

39

Aug

41

Sep

32

Oct

31

Nov

39

Dec

45

Sun

Jan

2UVI

Feb

3UVI

Mar

4UVI

Apr

5UVI

May

6UVI

Jun

7UVI

Jul

9UVI

Aug

7UVI

Sep

6UVI

Oct

4UVI

Nov

2UVI

Dec

1UVI

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