S
M
T
W
T
F
S
26
64°
43°
27
77°
39°
28
75°
55°
29
63°
50°
30
57°
37°
1
52°
36°
2
52°
32°
3
63°
30°
4
73°
46°
5
72°
57°
6
61°
43°
7
61°
37°
8
72°
37°
9
73°
52°
10
70°
50°
11
70°
47°
12
75°
42°
13
72°
50°
14
64°
45°
15
70°
39°
16
75°
54°
17
86°
61°
18
88°
64°
19
89°
65°
20
74°
50°
21
73°
59°
22
67°
65°
23
76°
62°
24
75°
62°
25
76°
65°
26
80°
64°
27
78°
62°
28
77°
60°
29
79°
58°
30
82°
63°
31
81°
63°
1
79°
56°
2
80°
61°
3
79°
60°
4
74°
56°
5
75°
55°
6
78°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Chillicothe
Chillicothe's May 2026 forecast shows daily high temperatures ranging from 67° to 89°, with overnight lows between 50° and 65°. The average high for May is 77° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Chillicothe. See also: June | July | August.
