S
M
T
W
T
F
S
27
77°
60°
28
76°
60°
29
75°
59°
30
74°
58°
1
74°
57°
2
73°
57°
3
74°
56°
4
73°
56°
5
72°
55°
6
72°
56°
7
71°
55°
8
72°
54°
9
72°
55°
10
72°
55°
11
72°
53°
12
69°
50°
13
67°
49°
14
59°
49°
15
58°
50°
16
64°
54°
17
63°
45°
18
67°
41°
19
60°
38°
20
54°
37°
21
54°
41°
22
57°
40°
23
56°
40°
24
53°
45°
25
54°
38°
26
54°
35°
27
52°
34°
28
49°
35°
29
49°
35°
30
51°
36°
31
50°
31°
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 49° to 77°, with overnight lows between 31° and 60°. The average high for October is 64° with an average low of 48°. 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.
