S
M
T
W
T
F
S
28
61°
42°
29
66°
46°
30
74°
45°
1
73°
46°
2
74°
45°
3
75°
46°
4
76°
47°
5
77°
49°
6
75°
47°
7
77°
50°
8
78°
50°
9
75°
48°
10
74°
50°
11
78°
52°
12
77°
51°
13
78°
53°
14
79°
54°
15
76°
53°
16
76°
53°
17
77°
52°
18
76°
54°
19
80°
55°
20
80°
56°
21
79°
55°
22
80°
56°
23
79°
55°
24
77°
53°
25
79°
55°
26
78°
55°
27
78°
54°
28
75°
54°
29
72°
50°
30
72°
48°
31
73°
55°
1
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Glenbrook
Glenbrook's July 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 42° and 56°. The average high for July is 76° with an average low of 51°. 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 Glenbrook. See also: August | September | October.