S
M
T
W
T
F
S
30
90°
66°
31
91°
68°
1
93°
70°
2
94°
69°
3
96°
70°
4
95°
72°
5
84°
68°
6
85°
62°
7
84°
62°
8
87°
64°
9
88°
71°
10
81°
60°
11
78°
54°
12
81°
60°
13
83°
61°
14
81°
53°
15
87°
59°
16
83°
56°
17
85°
57°
18
84°
53°
19
79°
58°
20
80°
57°
21
81°
58°
22
78°
57°
23
78°
56°
24
79°
56°
25
80°
57°
26
80°
57°
27
79°
56°
28
80°
57°
29
80°
56°
30
79°
55°
1
79°
55°
2
77°
51°
3
75°
46°
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 88°, with overnight lows between 46° and 71°. The average high for September is 81° with an average low of 58°. 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.
