S
M
T
W
T
F
S
30
83°
46°
31
85°
45°
1
84°
47°
2
79°
50°
3
77°
48°
4
76°
47°
5
83°
42°
6
80°
46°
7
81°
46°
8
80°
45°
9
80°
45°
10
79°
44°
11
80°
45°
12
79°
44°
13
78°
44°
14
79°
43°
15
79°
43°
16
78°
42°
17
78°
42°
18
70°
41°
19
68°
40°
20
75°
41°
21
71°
40°
22
75°
39°
23
75°
40°
24
68°
40°
25
69°
39°
26
65°
39°
27
69°
38°
28
71°
38°
29
70°
36°
30
72°
37°
1
72°
37°
2
71°
36°
3
72°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Rex Stadium
Rex Stadium's September 2026 forecast shows daily high temperatures ranging from 65° to 85°, with overnight lows between 36° and 50°. The average high for September is 76° with an average low of 42°. 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 Rex Stadium. See also: October | November | December.