S
M
T
W
T
F
S
30
80°
61°
31
83°
64°
1
83°
64°
2
81°
63°
3
84°
56°
4
77°
55°
5
76°
57°
6
77°
62°
7
83°
61°
8
77°
59°
9
75°
60°
10
77°
61°
11
82°
62°
12
82°
61°
13
81°
61°
14
82°
60°
15
81°
60°
16
80°
59°
17
78°
52°
18
73°
51°
19
72°
49°
20
71°
48°
21
70°
48°
22
70°
51°
23
71°
49°
24
75°
49°
25
73°
55°
26
75°
55°
27
76°
56°
28
76°
54°
29
77°
53°
30
75°
52°
1
71°
51°
2
74°
54°
3
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in North Indianapolis
North Indianapolis's September 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 48° and 64°. The average high for September is 77° with an average low of 56°. 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 North Indianapolis. See also: October | November | December.
