S
M
T
W
T
F
S
27
74°
41°
28
65°
45°
29
70°
50°
30
69°
46°
1
64°
49°
2
62°
51°
3
70°
51°
4
71°
48°
5
71°
46°
6
64°
37°
7
62°
36°
8
57°
35°
9
54°
36°
10
54°
45°
11
59°
45°
12
58°
47°
13
60°
41°
14
67°
40°
15
64°
42°
16
60°
36°
17
55°
37°
18
53°
31°
19
56°
36°
20
53°
39°
21
60°
43°
22
60°
40°
23
59°
37°
24
52°
29°
25
49°
32°
26
48°
27°
27
46°
26°
28
43°
24°
29
42°
26°
30
43°
31°
31
42°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Wheaton
Wheaton's October 2026 forecast shows daily high temperatures ranging from 42° to 74°, with overnight lows between 24° and 51°. The average high for October is 58° with an average low of 39°. 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 Wheaton. See also: November | December | January.
