S
M
T
W
T
F
S
30
87°
58°
31
80°
61°
1
80°
62°
2
81°
64°
3
85°
57°
4
80°
60°
5
80°
63°
6
85°
62°
7
86°
62°
8
85°
61°
9
83°
60°
10
84°
61°
11
81°
60°
12
77°
61°
13
85°
61°
14
84°
60°
15
Hist. Avg.
76°
55°
16
Hist. Avg.
76°
55°
17
Hist. Avg.
76°
54°
18
Hist. Avg.
75°
54°
19
Hist. Avg.
75°
54°
20
Hist. Avg.
75°
53°
21
Hist. Avg.
74°
53°
22
Hist. Avg.
74°
52°
23
Hist. Avg.
74°
52°
24
Hist. Avg.
73°
52°
25
Hist. Avg.
73°
51°
26
Hist. Avg.
73°
51°
27
Hist. Avg.
72°
51°
28
Hist. Avg.
72°
50°
29
Hist. Avg.
71°
50°
30
Hist. Avg.
71°
49°
1
Hist. Avg.
71°
49°
2
Hist. Avg.
70°
48°
3
Hist. Avg.
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Muncie
Muncie's September 2026 forecast shows daily high temperatures ranging from 77° to 87°, with overnight lows between 57° and 64°. The average high for September is 83° 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.