S
M
T
W
T
F
S
27
74°
55°
28
74°
55°
29
73°
54°
30
72°
52°
1
70°
48°
2
65°
53°
3
70°
53°
4
72°
54°
5
71°
53°
6
71°
53°
7
70°
54°
8
69°
52°
9
67°
51°
10
68°
49°
11
69°
41°
12
56°
38°
13
55°
39°
14
54°
39°
15
54°
40°
16
55°
38°
17
54°
36°
18
51°
36°
19
52°
38°
20
52°
39°
21
53°
40°
22
52°
44°
23
67°
39°
24
66°
39°
25
56°
35°
26
55°
33°
27
49°
30°
28
47°
36°
29
48°
42°
30
49°
33°
31
53°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Vernon Hills
Vernon Hills's October 2026 forecast shows daily high temperatures ranging from 47° to 74°, with overnight lows between 30° and 55°. The average high for October is 61° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Vernon Hills. See also: November | December | January.
