S
M
T
W
T
F
S
27
81°
57°
28
84°
59°
29
81°
62°
30
85°
58°
1
83°
61°
2
83°
61°
3
84°
60°
4
84°
60°
5
78°
59°
6
76°
59°
7
79°
58°
8
83°
59°
9
84°
58°
10
84°
58°
11
82°
57°
12
79°
57°
13
81°
56°
14
82°
57°
15
81°
55°
16
80°
54°
17
80°
47°
18
79°
46°
19
72°
47°
20
72°
45°
21
71°
49°
22
72°
52°
23
78°
47°
24
77°
43°
25
69°
44°
26
68°
45°
27
70°
51°
28
70°
49°
29
75°
41°
30
69°
42°
31
75°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Warrenville
Warrenville's October 2026 forecast shows daily high temperatures ranging from 68° to 85°, with overnight lows between 41° and 62°. The average high for October is 78° with an average low of 53°. 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 Warrenville. See also: November | December | January.