S
M
T
W
T
F
S
30
83°
67°
31
91°
72°
1
92°
72°
2
95°
73°
3
92°
72°
4
90°
70°
5
86°
65°
6
79°
59°
7
80°
60°
8
82°
59°
9
82°
63°
10
80°
58°
11
80°
57°
12
79°
54°
13
75°
57°
14
78°
67°
15
83°
61°
16
82°
62°
17
83°
61°
18
82°
61°
19
82°
60°
20
83°
61°
21
82°
61°
22
82°
60°
23
81°
60°
24
82°
59°
25
81°
60°
26
82°
58°
27
81°
59°
28
81°
59°
29
80°
58°
30
79°
57°
1
78°
56°
2
78°
56°
3
77°
55°
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 75° to 95°, with overnight lows between 54° and 73°. The average high for September is 82° 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 Muncie. See also: October | November | December.
