S
M
T
W
T
F
S
28
86°
65°
29
87°
64°
30
86°
65°
1
85°
64°
2
85°
60°
3
78°
58°
4
79°
58°
5
80°
63°
6
84°
65°
7
83°
65°
8
84°
64°
9
86°
66°
10
82°
61°
11
81°
63°
12
81°
65°
13
87°
64°
14
88°
58°
15
82°
64°
16
84°
63°
17
82°
60°
18
82°
58°
19
81°
57°
20
82°
59°
21
83°
66°
22
84°
59°
23
83°
59°
24
81°
60°
25
81°
64°
26
82°
66°
27
82°
65°
28
86°
60°
29
82°
57°
30
81°
57°
31
80°
58°
1
82°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Glendale Heights
Glendale Heights's July 2026 forecast shows daily high temperatures ranging from 78° to 88°, with overnight lows between 57° and 66°. The average high for July is 83° with an average low of 62°. 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 Glendale Heights. See also: August | September | October.
