S
M
T
W
T
F
S
28
82°
61°
29
94°
73°
30
96°
79°
1
97°
80°
2
97°
71°
3
89°
68°
4
84°
66°
5
77°
65°
6
80°
64°
7
85°
68°
8
90°
71°
9
87°
68°
10
81°
66°
11
82°
68°
12
83°
67°
13
85°
68°
14
87°
69°
15
87°
70°
16
89°
68°
17
84°
64°
18
79°
66°
19
79°
67°
20
80°
61°
21
79°
61°
22
79°
62°
23
82°
66°
24
81°
66°
25
81°
65°
26
83°
67°
27
80°
67°
28
87°
68°
29
87°
68°
30
86°
67°
31
85°
68°
1
86°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Northbrook
Northbrook's July 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 61° and 71°. The average high for July is 83° with an average low of 67°. 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 Northbrook. See also: August | September | October.
