S
M
T
W
T
F
S
30
92°
62°
31
88°
63°
1
87°
67°
2
90°
68°
3
90°
67°
4
89°
67°
5
90°
66°
6
89°
68°
7
89°
65°
8
88°
64°
9
86°
61°
10
87°
63°
11
86°
62°
12
89°
64°
13
88°
65°
14
88°
64°
15
Hist. Avg.
86°
64°
16
Hist. Avg.
85°
63°
17
Hist. Avg.
85°
63°
18
Hist. Avg.
85°
62°
19
Hist. Avg.
84°
62°
20
Hist. Avg.
84°
62°
21
Hist. Avg.
84°
61°
22
Hist. Avg.
83°
61°
23
Hist. Avg.
83°
60°
24
Hist. Avg.
82°
60°
25
Hist. Avg.
82°
60°
26
Hist. Avg.
82°
59°
27
Hist. Avg.
82°
59°
28
Hist. Avg.
81°
58°
29
Hist. Avg.
81°
58°
30
Hist. Avg.
80°
57°
1
Hist. Avg.
80°
57°
2
Hist. Avg.
80°
57°
3
Hist. Avg.
79°
56°
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 86° to 92°, with overnight lows between 61° and 68°. The average high for September is 89° 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.