S
M
T
W
T
F
S
28
83°
64°
29
91°
76°
30
93°
75°
1
94°
74°
2
95°
72°
3
90°
73°
4
91°
70°
5
85°
68°
6
85°
68°
7
84°
70°
8
87°
68°
9
86°
65°
10
86°
68°
11
88°
66°
12
85°
67°
13
86°
66°
14
84°
64°
15
80°
62°
16
82°
66°
17
78°
61°
18
79°
66°
19
79°
68°
20
80°
67°
21
84°
68°
22
86°
68°
23
86°
67°
24
83°
67°
25
85°
68°
26
86°
69°
27
87°
69°
28
86°
68°
29
87°
69°
30
86°
68°
31
85°
67°
1
79°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Joliet
Joliet's July 2026 forecast shows daily high temperatures ranging from 78° to 95°, with overnight lows between 61° and 74°. The average high for July is 85° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Joliet. See also: August | September | October.
