S
M
T
W
T
F
S
26
102°
72°
27
103°
67°
28
96°
66°
29
97°
66°
30
101°
61°
31
92°
67°
1
88°
64°
2
95°
66°
3
99°
68°
4
89°
63°
5
95°
67°
6
95°
68°
7
95°
67°
8
94°
66°
9
93°
65°
10
95°
66°
11
93°
65°
12
93°
64°
13
90°
63°
14
91°
64°
15
87°
64°
16
90°
65°
17
89°
64°
18
89°
63°
19
88°
64°
20
89°
64°
21
89°
63°
22
88°
63°
23
88°
64°
24
89°
65°
25
90°
64°
26
88°
63°
27
89°
64°
28
89°
64°
29
90°
63°
30
89°
64°
31
89°
64°
1
88°
63°
2
88°
63°
3
87°
62°
4
85°
62°
5
87°
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 85° to 99°, with overnight lows between 61° and 68°. The average high for August is 90° 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 Clayton. See also: September | October | November.