S
M
T
W
T
F
S
27
75°
44°
28
74°
43°
29
66°
45°
30
68°
49°
1
68°
49°
2
70°
52°
3
74°
51°
4
75°
50°
5
74°
51°
6
73°
51°
7
74°
42°
8
71°
39°
9
61°
40°
10
60°
38°
11
61°
41°
12
60°
47°
13
66°
50°
14
69°
46°
15
71°
41°
16
69°
41°
17
66°
35°
18
57°
38°
19
58°
34°
20
56°
43°
21
55°
43°
22
60°
42°
23
65°
37°
24
56°
32°
25
54°
33°
26
52°
41°
27
53°
32°
28
53°
30°
29
52°
29°
30
48°
31°
31
61°
37°
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 48° to 75°, with overnight lows between 29° and 52°. The average high for October is 64° with an average low of 41°. 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.
