S
M
T
W
T
F
S
30
88°
54°
31
81°
55°
1
78°
53°
2
79°
54°
3
78°
56°
4
77°
59°
5
83°
51°
6
83°
54°
7
89°
53°
8
98°
56°
9
101°
64°
10
100°
70°
11
89°
60°
12
87°
60°
13
80°
56°
14
87°
53°
15
89°
55°
16
80°
54°
17
74°
53°
18
85°
53°
19
88°
55°
20
81°
55°
21
82°
55°
22
81°
54°
23
90°
54°
24
94°
58°
25
N/A
26
82°
51°
27
N/A
28
N/A
29
93°
54°
30
94°
57°
1
96°
56°
2
93°
60°
3
99°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Clay
Clay's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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.