S
M
T
W
T
F
S
28
84°
66°
29
83°
65°
30
83°
66°
1
82°
65°
2
82°
61°
3
75°
60°
4
77°
59°
5
78°
64°
6
82°
66°
7
80°
66°
8
80°
65°
9
84°
67°
10
79°
62°
11
79°
64°
12
78°
66°
13
84°
65°
14
86°
59°
15
79°
65°
16
82°
64°
17
80°
61°
18
79°
59°
19
78°
58°
20
79°
60°
21
81°
67°
22
82°
60°
23
81°
59°
24
78°
59°
25
78°
65°
26
79°
67°
27
79°
66°
28
83°
61°
29
79°
58°
30
78°
57°
31
78°
58°
1
79°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Vernon Hills
Vernon Hills's July 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 57° and 67°. The average high for July is 80° with an average low of 63°. 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 Vernon Hills. See also: August | September | October.
