S
M
T
W
T
F
S
27
73°
45°
28
72°
47°
29
80°
51°
30
69°
61°
1
72°
60°
2
66°
47°
3
70°
45°
4
74°
50°
5
68°
44°
6
75°
46°
7
81°
54°
8
73°
50°
9
71°
50°
10
82°
57°
11
81°
53°
12
88°
59°
13
82°
63°
14
64°
58°
15
64°
57°
16
57°
42°
17
59°
37°
18
62°
41°
19
70°
39°
20
64°
50°
21
68°
55°
22
67°
53°
23
65°
55°
24
67°
57°
25
69°
53°
26
65°
46°
27
59°
42°
28
55°
45°
29
58°
47°
30
62°
49°
31
53°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Wilmette
Wilmette's October 2026 forecast shows daily high temperatures ranging from 53° to 69°, with overnight lows between 42° and 57°. The average high for October is 63° with an average low of 50°. 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 Wilmette. See also: November | December | January.
