S
M
T
W
T
F
S
26
91°
72°
27
87°
70°
28
79°
63°
29
80°
61°
30
87°
60°
31
81°
65°
1
70°
66°
2
77°
64°
3
80°
61°
4
85°
63°
5
82°
69°
6
78°
66°
7
87°
67°
8
83°
66°
9
82°
62°
10
85°
71°
11
81°
71°
12
84°
70°
13
77°
67°
14
78°
68°
15
78°
72°
16
87°
70°
17
78°
66°
18
81°
63°
19
78°
63°
20
78°
60°
21
79°
60°
22
81°
65°
23
75°
60°
24
78°
56°
25
81°
56°
26
84°
69°
27
80°
63°
28
83°
62°
29
82°
60°
30
83°
69°
31
86°
69°
1
95°
72°
2
96°
74°
3
88°
74°
4
93°
74°
5
81°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Vernon Hills
Vernon Hills's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Vernon Hills. See also: September | October | November.
