S
M
T
W
T
F
S
30
90°
71°
31
93°
70°
1
97°
70°
2
97°
73°
3
99°
73°
4
97°
72°
5
97°
72°
6
95°
72°
7
79°
72°
8
86°
68°
9
90°
64°
10
93°
64°
11
93°
68°
12
82°
72°
13
91°
68°
14
93°
70°
15
82°
72°
16
88°
68°
17
90°
66°
18
N/A
19
84°
67°
20
83°
63°
21
85°
64°
22
76°
64°
23
74°
63°
24
73°
58°
25
72°
57°
26
73°
54°
27
73°
53°
28
75°
53°
29
74°
54°
30
75°
56°
1
78°
53°
2
73°
59°
3
73°
59°
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 72° to 85°, with overnight lows between 53° and 67°. The average high for September is 76° with an average low of 58°. 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.
