S
M
T
W
T
F
S
28
78°
60°
29
78°
64°
30
83°
67°
1
82°
67°
2
80°
66°
3
85°
63°
4
80°
61°
5
78°
60°
6
79°
61°
7
80°
64°
8
80°
65°
9
85°
68°
10
86°
68°
11
81°
67°
12
83°
68°
13
84°
68°
14
85°
67°
15
80°
65°
16
82°
68°
17
82°
68°
18
85°
67°
19
86°
67°
20
84°
61°
21
84°
65°
22
84°
62°
23
85°
60°
24
80°
59°
25
79°
60°
26
79°
60°
27
80°
63°
28
79°
61°
29
80°
62°
30
80°
67°
31
85°
66°
1
86°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in South Chicago Heights
South Chicago Heights's July 2026 forecast shows daily high temperatures ranging from 78° to 86°, with overnight lows between 59° and 68°. The average high for July is 82° with an average low of 64°. 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 South Chicago Heights. See also: August | September | October.
