S
M
T
W
T
F
S
28
82°
68°
29
85°
70°
30
88°
70°
1
84°
68°
2
83°
66°
3
83°
67°
4
84°
66°
5
81°
67°
6
78°
60°
7
79°
62°
8
79°
63°
9
80°
65°
10
80°
68°
11
84°
68°
12
82°
67°
13
82°
66°
14
81°
68°
15
80°
66°
16
80°
64°
17
81°
64°
18
82°
65°
19
81°
68°
20
81°
61°
21
78°
62°
22
79°
62°
23
80°
64°
24
82°
66°
25
84°
68°
26
85°
68°
27
79°
65°
28
79°
63°
29
80°
64°
30
84°
69°
31
85°
68°
1
82°
65°
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 88°, with overnight lows between 60° and 70°. The average high for July is 82° with an average low of 66°. 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.
