S
M
T
W
T
F
S
30
106°
76°
31
104°
75°
1
103°
70°
2
102°
75°
3
100°
78°
4
100°
75°
5
102°
78°
6
102°
77°
7
102°
78°
8
103°
79°
9
97°
68°
10
90°
67°
11
97°
71°
12
100°
72°
13
95°
63°
14
85°
62°
15
80°
60°
16
83°
61°
17
87°
64°
18
84°
60°
19
85°
60°
20
82°
56°
21
87°
63°
22
86°
63°
23
87°
62°
24
84°
62°
25
74°
61°
26
79°
61°
27
80°
60°
28
79°
60°
29
78°
59°
30
81°
49°
1
70°
46°
2
70°
45°
3
69°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mulvane
Mulvane's September 2026 forecast shows daily high temperatures ranging from 69° to 103°, with overnight lows between 45° and 79°. The average high for September is 85° with an average low of 61°. 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 Mulvane. See also: October | November | December.
