S
M
T
W
T
F
S
30
93°
72°
31
96°
73°
1
97°
73°
2
99°
74°
3
100°
76°
4
102°
76°
5
102°
76°
6
97°
74°
7
97°
76°
8
92°
70°
9
93°
72°
10
93°
72°
11
89°
73°
12
91°
68°
13
89°
70°
14
90°
67°
15
88°
66°
16
90°
65°
17
87°
65°
18
86°
63°
19
84°
61°
20
85°
62°
21
84°
60°
22
87°
64°
23
87°
65°
24
86°
65°
25
86°
64°
26
87°
64°
27
87°
63°
28
86°
64°
29
86°
64°
30
85°
63°
1
85°
62°
2
81°
56°
3
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Clay
Clay's September 2026 forecast shows daily high temperatures ranging from 75° to 93°, with overnight lows between 52° and 73°. The average high for September is 87° 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 Clay. See also: October | November | December.
