S
M
T
W
T
F
S
30
83°
64°
31
84°
64°
1
86°
66°
2
87°
68°
3
87°
67°
4
86°
66°
5
87°
66°
6
86°
67°
7
82°
65°
8
86°
66°
9
85°
64°
10
86°
61°
11
84°
65°
12
83°
64°
13
84°
64°
14
85°
64°
15
85°
65°
16
85°
64°
17
82°
65°
18
Hist. Avg.
81°
60°
19
Hist. Avg.
80°
60°
20
Hist. Avg.
80°
59°
21
Hist. Avg.
80°
59°
22
Hist. Avg.
80°
59°
23
Hist. Avg.
79°
58°
24
Hist. Avg.
79°
58°
25
Hist. Avg.
78°
57°
26
Hist. Avg.
78°
57°
27
Hist. Avg.
78°
56°
28
Hist. Avg.
78°
56°
29
Hist. Avg.
77°
56°
30
Hist. Avg.
77°
55°
1
Hist. Avg.
76°
55°
2
Hist. Avg.
76°
54°
3
Hist. Avg.
76°
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 87°, with overnight lows between 61° and 68°. The average high for September is 85° with an average low of 65°. 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.
