S
M
T
W
T
F
S
26
84°
70°
27
84°
64°
28
84°
66°
29
86°
69°
30
90°
64°
31
88°
67°
1
90°
64°
2
84°
64°
3
83°
65°
4
82°
62°
5
83°
63°
6
82°
62°
7
82°
63°
8
83°
65°
9
82°
65°
10
85°
66°
11
86°
69°
12
83°
69°
13
89°
67°
14
90°
60°
15
86°
61°
16
81°
67°
17
83°
68°
18
87°
61°
19
86°
61°
20
82°
65°
21
84°
66°
22
87°
64°
23
88°
66°
24
87°
67°
25
86°
64°
26
88°
61°
27
80°
64°
28
83°
64°
29
81°
66°
30
85°
66°
31
87°
65°
1
86°
62°
2
83°
64°
3
81°
58°
4
79°
57°
5
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chillicothe
Chillicothe's August 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 56° and 70°. The average high for August is 84° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Chillicothe. See also: September | October | November.
