S
M
T
W
T
F
S
30
86°
69°
31
94°
67°
1
96°
72°
2
99°
73°
3
98°
73°
4
96°
73°
5
96°
70°
6
84°
66°
7
87°
63°
8
86°
58°
9
89°
58°
10
92°
64°
11
97°
70°
12
91°
70°
13
91°
72°
14
93°
69°
15
84°
63°
16
87°
57°
17
92°
59°
18
95°
69°
19
88°
68°
20
90°
64°
21
94°
66°
22
86°
66°
23
69°
63°
24
66°
60°
25
N/A
26
80°
49°
27
80°
52°
28
78°
56°
29
82°
57°
30
83°
62°
1
87°
63°
2
89°
64°
3
88°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Clayton
Clayton's September 2026 forecast shows daily high temperatures ranging from 78° to 89°, with overnight lows between 49° and 65°. The average high for September is 83° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Clayton. See also: October | November | December.
