S
M
T
W
T
F
S
28
81°
60°
29
91°
75°
30
92°
76°
1
92°
77°
2
93°
70°
3
87°
70°
4
84°
68°
5
77°
65°
6
81°
64°
7
85°
60°
8
88°
70°
9
82°
67°
10
82°
62°
11
84°
64°
12
88°
65°
13
89°
69°
14
93°
69°
15
92°
68°
16
89°
67°
17
85°
65°
18
87°
63°
19
85°
65°
20
82°
64°
21
84°
63°
22
80°
61°
23
82°
65°
24
89°
69°
25
88°
69°
26
90°
68°
27
89°
68°
28
87°
67°
29
86°
67°
30
84°
66°
31
80°
66°
1
80°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Carol Stream
Carol Stream's July 2026 forecast shows daily high temperatures ranging from 80° to 93°, with overnight lows between 61° and 70°. The average high for July is 86° 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 Carol Stream. See also: August | September | October.