S
M
T
W
T
F
S
27
73°
43°
28
75°
45°
29
77°
45°
30
79°
54°
1
86°
59°
2
73°
57°
3
70°
46°
4
73°
43°
5
70°
41°
6
68°
36°
7
81°
50°
8
79°
42°
9
74°
46°
10
76°
59°
11
70°
59°
12
73°
55°
13
67°
49°
14
59°
41°
15
61°
44°
16
60°
41°
17
63°
46°
18
65°
46°
19
65°
47°
20
64°
42°
21
60°
47°
22
60°
42°
23
57°
35°
24
57°
36°
25
61°
39°
26
65°
41°
27
64°
34°
28
55°
33°
29
55°
33°
30
56°
36°
31
63°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Chillicothe
Chillicothe's October 2026 forecast shows daily high temperatures ranging from 55° to 81°, with overnight lows between 33° and 59°. The average high for October is 64° with an average low of 43°. 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 Chillicothe. See also: November | December | January.