S
M
T
W
T
F
S
30
97°
76°
31
96°
76°
1
96°
75°
2
95°
75°
3
94°
74°
4
95°
74°
5
95°
73°
6
94°
74°
7
95°
74°
8
95°
73°
9
94°
75°
10
94°
75°
11
93°
71°
12
93°
72°
13
94°
71°
14
95°
64°
15
93°
67°
16
92°
71°
17
94°
71°
18
94°
70°
19
93°
71°
20
94°
70°
21
89°
67°
22
87°
63°
23
84°
64°
24
82°
61°
25
82°
62°
26
83°
65°
27
91°
66°
28
92°
64°
29
90°
67°
30
91°
68°
1
92°
60°
2
90°
56°
3
82°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mustang
Mustang's September 2026 forecast shows daily high temperatures ranging from 82° to 97°, with overnight lows between 55° and 76°. The average high for September is 92° with an average low of 69°. 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 Mustang. See also: October | November | December.
