S
M
T
W
T
F
S
30
78°
56°
31
77°
61°
1
74°
56°
2
81°
62°
3
82°
63°
4
85°
58°
5
81°
53°
6
77°
52°
7
77°
55°
8
78°
59°
9
80°
51°
10
72°
50°
11
71°
47°
12
72°
48°
13
71°
53°
14
70°
48°
15
71°
46°
16
68°
46°
17
68°
45°
18
69°
45°
19
68°
46°
20
67°
46°
21
68°
47°
22
70°
51°
23
71°
52°
24
74°
54°
25
75°
52°
26
74°
44°
27
69°
49°
28
66°
53°
29
66°
49°
30
71°
48°
1
67°
49°
2
64°
42°
3
63°
50°
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 63° to 85°, with overnight lows between 42° and 63°. The average high for September is 72° with an average low of 51°. 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.
