S
M
T
W
T
F
S
30
83°
67°
31
91°
72°
1
94°
75°
2
94°
76°
3
95°
75°
4
94°
74°
5
89°
68°
6
78°
59°
7
81°
57°
8
87°
58°
9
89°
68°
10
80°
63°
11
82°
58°
12
80°
67°
13
84°
58°
14
75°
60°
15
91°
70°
16
86°
71°
17
86°
68°
18
83°
68°
19
88°
68°
20
83°
63°
21
75°
55°
22
71°
56°
23
74°
53°
24
75°
56°
25
74°
55°
26
73°
54°
27
80°
58°
28
78°
58°
29
77°
57°
30
78°
58°
1
76°
57°
2
77°
56°
3
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Muncie
Muncie's September 2026 forecast shows daily high temperatures ranging from 71° to 91°, with overnight lows between 53° and 71°. The average high for September is 79° with an average low of 60°. 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 Muncie. See also: October | November | December.
