S
M
T
W
T
F
S
30
87°
65°
31
86°
65°
1
85°
64°
2
84°
62°
3
84°
65°
4
83°
60°
5
83°
61°
6
85°
64°
7
84°
63°
8
83°
64°
9
84°
63°
10
81°
63°
11
83°
62°
12
79°
62°
13
77°
59°
14
76°
62°
15
77°
62°
16
78°
58°
17
79°
57°
18
79°
57°
19
76°
58°
20
76°
55°
21
74°
53°
22
75°
53°
23
78°
54°
24
78°
58°
25
79°
59°
26
78°
58°
27
79°
57°
28
73°
52°
29
77°
51°
30
75°
54°
1
76°
54°
2
Hist. Avg.
76°
55°
3
Hist. Avg.
76°
55°
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 73° to 87°, with overnight lows between 51° and 65°. The average high for September is 80° 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.
