S
M
T
W
T
F
S
31
77°
54°
1
70°
56°
2
76°
45°
3
85°
52°
4
86°
58°
5
82°
70°
6
90°
68°
7
85°
65°
8
81°
65°
9
89°
71°
10
89°
66°
11
80°
66°
12
80°
59°
13
82°
61°
14
72°
57°
15
75°
50°
16
76°
58°
17
70°
55°
18
73°
59°
19
77°
56°
20
78°
58°
21
70°
59°
22
75°
54°
23
79°
57°
24
79°
59°
25
74°
56°
26
75°
61°
27
77°
64°
28
80°
68°
29
85°
70°
30
84°
65°
1
81°
64°
2
83°
67°
3
84°
63°
4
80°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Joliet
Joliet's June 2026 forecast shows daily high temperatures ranging from 70° to 85°, with overnight lows between 54° and 70°. The average high for June is 79° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Joliet. See also: July | August | September.