S
M
T
W
T
F
S
30
73°
54°
31
77°
62°
1
75°
63°
2
76°
60°
3
73°
56°
4
72°
52°
5
71°
52°
6
71°
55°
7
73°
60°
8
72°
53°
9
69°
51°
10
70°
51°
11
70°
46°
12
67°
49°
13
69°
49°
14
68°
50°
15
67°
49°
16
68°
48°
17
68°
48°
18
69°
47°
19
66°
47°
20
65°
45°
21
65°
45°
22
66°
48°
23
69°
49°
24
71°
46°
25
72°
53°
26
74°
53°
27
70°
47°
28
66°
45°
29
64°
44°
30
64°
43°
1
62°
52°
2
71°
52°
3
72°
41°
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 62° to 77°, with overnight lows between 41° and 63°. The average high for September is 70° with an average low of 50°. 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.
