S
M
T
W
T
F
S
31
82°
45°
1
84°
54°
2
81°
54°
3
88°
51°
4
91°
54°
5
95°
59°
6
96°
62°
7
87°
68°
8
77°
55°
9
81°
61°
10
83°
66°
11
87°
70°
12
92°
68°
13
87°
63°
14
83°
63°
15
79°
61°
16
78°
58°
17
78°
57°
18
78°
58°
19
80°
61°
20
82°
62°
21
78°
58°
22
81°
62°
23
76°
62°
24
76°
60°
25
80°
62°
26
80°
62°
27
84°
63°
28
83°
62°
29
77°
58°
30
78°
61°
1
81°
63°
2
83°
61°
3
78°
60°
4
81°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Joliett
Joliett's June 2026 forecast shows daily high temperatures ranging from 76° to 92°, with overnight lows between 55° and 70°. The average high for June is 81° with an average low of 61°. 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 Joliett. See also: July | August | September.