S
M
T
W
T
F
S
30
88°
57°
31
87°
56°
1
88°
57°
2
89°
58°
3
91°
58°
4
91°
59°
5
90°
59°
6
92°
60°
7
92°
60°
8
91°
59°
9
90°
59°
10
85°
58°
11
85°
60°
12
89°
61°
13
90°
60°
14
91°
60°
15
90°
59°
16
89°
58°
17
87°
59°
18
88°
59°
19
89°
59°
20
Hist. Avg.
85°
57°
21
Hist. Avg.
84°
57°
22
Hist. Avg.
84°
57°
23
Hist. Avg.
84°
57°
24
Hist. Avg.
84°
57°
25
Hist. Avg.
84°
57°
26
Hist. Avg.
84°
56°
27
Hist. Avg.
83°
56°
28
Hist. Avg.
83°
56°
29
Hist. Avg.
83°
56°
30
Hist. Avg.
83°
56°
1
Hist. Avg.
82°
56°
2
Hist. Avg.
82°
56°
3
Hist. Avg.
82°
55°
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 85° to 92°, with overnight lows between 56° and 61°. The average high for September is 89° 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.
