S
M
T
W
T
F
S
30
97°
78°
31
97°
77°
1
95°
76°
2
94°
77°
3
95°
77°
4
95°
76°
5
94°
76°
6
94°
75°
7
93°
75°
8
94°
74°
9
94°
75°
10
93°
75°
11
94°
74°
12
93°
75°
13
94°
75°
14
94°
73°
15
94°
72°
16
93°
71°
17
92°
72°
18
93°
68°
19
90°
62°
20
85°
61°
21
85°
62°
22
89°
64°
23
89°
68°
24
90°
68°
25
89°
67°
26
89°
67°
27
88°
63°
28
87°
58°
29
79°
58°
30
83°
60°
1
86°
63°
2
87°
64°
3
87°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in AT&T Stadium
AT&T Stadium's September 2026 forecast shows daily high temperatures ranging from 79° to 97°, with overnight lows between 58° and 78°. The average high for September is 91° with an average low of 70°. 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 AT&T Stadium. See also: October | November | December.