S
M
T
W
T
F
S
30
76°
55°
31
77°
61°
1
76°
62°
2
79°
61°
3
77°
53°
4
76°
52°
5
74°
53°
6
74°
53°
7
76°
55°
8
80°
56°
9
80°
59°
10
81°
51°
11
74°
52°
12
73°
57°
13
73°
50°
14
72°
50°
15
71°
51°
16
70°
50°
17
71°
53°
18
73°
48°
19
73°
48°
20
71°
49°
21
74°
48°
22
70°
54°
23
75°
54°
24
76°
55°
25
76°
54°
26
75°
55°
27
75°
54°
28
78°
53°
29
75°
51°
30
73°
53°
1
74°
54°
2
76°
45°
3
75°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Fort Wayne
Fort Wayne's September 2026 forecast shows daily high temperatures ranging from 70° to 81°, with overnight lows between 42° and 62°. The average high for September is 75° with an average low of 53°. 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 Fort Wayne. See also: October | November | December.
