S
M
T
W
T
F
S
30
78°
59°
31
78°
63°
1
79°
63°
2
78°
62°
3
80°
59°
4
78°
53°
5
76°
54°
6
76°
54°
7
77°
56°
8
82°
56°
9
81°
60°
10
83°
53°
11
75°
52°
12
75°
55°
13
76°
51°
14
75°
51°
15
72°
53°
16
73°
52°
17
72°
51°
18
73°
50°
19
76°
49°
20
73°
54°
21
76°
50°
22
73°
56°
23
78°
55°
24
78°
56°
25
77°
55°
26
77°
56°
27
76°
55°
28
78°
55°
29
77°
49°
30
74°
53°
1
75°
55°
2
77°
48°
3
77°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Clayton
Clayton's September 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 43° and 63°. The average high for September is 77° with an average low of 54°. 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.
