S
M
T
W
T
F
S
30
82°
64°
31
87°
68°
1
90°
73°
2
92°
71°
3
93°
72°
4
88°
70°
5
83°
68°
6
77°
60°
7
79°
58°
8
84°
57°
9
83°
66°
10
78°
63°
11
80°
64°
12
83°
65°
13
82°
51°
14
72°
58°
15
87°
65°
16
81°
63°
17
77°
59°
18
74°
54°
19
70°
52°
20
69°
51°
21
70°
52°
22
73°
55°
23
77°
55°
24
74°
50°
25
71°
55°
26
77°
55°
27
77°
54°
28
76°
55°
29
75°
55°
30
75°
54°
1
74°
51°
2
68°
53°
3
73°
53°
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 68° to 87°, with overnight lows between 50° and 65°. The average high for September is 75° 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 Fort Wayne. See also: October | November | December.
