S
M
T
W
T
F
S
30
97°
63°
31
93°
65°
1
90°
60°
2
92°
65°
3
96°
59°
4
96°
66°
5
96°
67°
6
94°
65°
7
94°
64°
8
94°
67°
9
91°
63°
10
83°
61°
11
94°
63°
12
81°
62°
13
92°
54°
14
94°
65°
15
76°
57°
16
83°
62°
17
85°
63°
18
86°
61°
19
85°
58°
20
79°
55°
21
76°
57°
22
72°
54°
23
75°
54°
24
77°
55°
25
81°
55°
26
81°
57°
27
82°
56°
28
81°
53°
29
72°
41°
30
70°
53°
1
79°
53°
2
73°
52°
3
77°
52°
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 70° to 86°, with overnight lows between 41° and 63°. The average high for September is 79° 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.
