S
M
T
W
T
F
S
26
62°
48°
27
70°
42°
28
62°
50°
29
60°
37°
30
56°
37°
1
52°
33°
2
54°
36°
3
63°
46°
4
62°
46°
5
65°
44°
6
59°
45°
7
63°
44°
8
61°
43°
9
62°
42°
10
61°
44°
11
60°
47°
12
69°
49°
13
68°
43°
14
64°
43°
15
64°
44°
16
65°
44°
17
66°
45°
18
72°
55°
19
74°
51°
20
72°
46°
21
67°
49°
22
69°
47°
23
72°
52°
24
78°
58°
25
79°
55°
26
72°
51°
27
70°
50°
28
73°
52°
29
78°
56°
30
79°
58°
31
80°
60°
1
81°
60°
2
82°
61°
3
82°
61°
4
81°
59°
5
75°
54°
6
80°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fort Wayne
Fort Wayne's May 2026 forecast shows daily high temperatures ranging from 52° to 82°, with overnight lows between 33° and 61°. The average high for May is 69° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Fort Wayne. See also: June | July | August.