S
M
T
W
T
F
S
30
84°
57°
31
80°
55°
1
79°
56°
2
78°
59°
3
78°
60°
4
79°
56°
5
82°
55°
6
76°
56°
7
77°
54°
8
77°
54°
9
78°
55°
10
77°
52°
11
77°
52°
12
75°
53°
13
74°
52°
14
75°
57°
15
77°
56°
16
79°
56°
17
80°
57°
18
80°
54°
19
74°
50°
20
81°
49°
21
73°
49°
22
Hist. Avg.
76°
54°
23
Hist. Avg.
75°
53°
24
Hist. Avg.
75°
53°
25
Hist. Avg.
75°
52°
26
Hist. Avg.
74°
52°
27
Hist. Avg.
74°
52°
28
Hist. Avg.
73°
51°
29
Hist. Avg.
73°
51°
30
Hist. Avg.
72°
51°
1
Hist. Avg.
72°
50°
2
Hist. Avg.
72°
50°
3
Hist. Avg.
71°
50°
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 73° to 84°, with overnight lows between 49° and 60°. The average high for September is 78° with an average low of 55°. 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.
