S
M
T
W
T
F
S
30
92°
69°
31
92°
69°
1
91°
68°
2
91°
67°
3
90°
65°
4
91°
60°
5
84°
60°
6
84°
64°
7
89°
67°
8
90°
68°
9
90°
68°
10
89°
67°
11
88°
67°
12
89°
66°
13
88°
64°
14
87°
65°
15
89°
66°
16
80°
64°
17
81°
66°
18
Hist. Avg.
83°
61°
19
Hist. Avg.
83°
60°
20
Hist. Avg.
82°
60°
21
Hist. Avg.
82°
60°
22
Hist. Avg.
82°
59°
23
Hist. Avg.
81°
59°
24
Hist. Avg.
81°
58°
25
Hist. Avg.
81°
58°
26
Hist. Avg.
80°
58°
27
Hist. Avg.
80°
57°
28
Hist. Avg.
80°
57°
29
Hist. Avg.
79°
56°
30
Hist. Avg.
79°
56°
1
Hist. Avg.
78°
56°
2
Hist. Avg.
78°
55°
3
Hist. Avg.
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Mustang
Mustang's September 2026 forecast shows daily high temperatures ranging from 80° to 92°, with overnight lows between 60° and 69°. The average high for September is 88° with an average low of 66°. 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.
