S
M
T
W
T
F
S
30
86°
64°
31
83°
68°
1
86°
69°
2
83°
67°
3
83°
63°
4
82°
68°
5
85°
70°
6
88°
68°
7
88°
69°
8
87°
68°
9
87°
68°
10
86°
66°
11
85°
67°
12
87°
67°
13
88°
65°
14
86°
66°
15
Hist. Avg.
81°
61°
16
Hist. Avg.
81°
61°
17
Hist. Avg.
81°
60°
18
Hist. Avg.
80°
60°
19
Hist. Avg.
80°
60°
20
Hist. Avg.
80°
59°
21
Hist. Avg.
79°
59°
22
Hist. Avg.
79°
58°
23
Hist. Avg.
78°
58°
24
Hist. Avg.
78°
58°
25
Hist. Avg.
78°
57°
26
Hist. Avg.
77°
57°
27
Hist. Avg.
77°
56°
28
Hist. Avg.
77°
56°
29
Hist. Avg.
76°
56°
30
Hist. Avg.
76°
55°
1
Hist. Avg.
75°
55°
2
Hist. Avg.
75°
54°
3
Hist. Avg.
75°
54°
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 82° to 88°, with overnight lows between 63° and 70°. The average high for September is 86° with an average low of 67°. 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.
