S
M
T
W
T
F
S
26
91°
72°
27
87°
71°
28
89°
72°
29
91°
73°
30
91°
72°
31
90°
72°
1
85°
71°
2
87°
71°
3
87°
70°
4
90°
72°
5
91°
72°
6
91°
73°
7
88°
67°
8
89°
71°
9
89°
71°
10
90°
70°
11
88°
69°
12
85°
66°
13
88°
67°
14
90°
69°
15
88°
70°
16
86°
70°
17
86°
69°
18
90°
70°
19
90°
69°
20
88°
68°
21
89°
69°
22
87°
69°
23
85°
67°
24
89°
66°
25
89°
68°
26
90°
64°
27
88°
64°
28
84°
65°
29
84°
64°
30
85°
63°
31
84°
67°
1
86°
68°
2
84°
63°
3
82°
63°
4
81°
62°
5
81°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Clayton
Clayton's August 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 61° and 73°. The average high for August is 87° with an average low of 68°. 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 Clayton. See also: September | October | November.