S
M
T
W
T
F
S
26
60°
46°
27
73°
44°
28
63°
49°
29
58°
46°
30
57°
43°
1
51°
36°
2
51°
31°
3
61°
33°
4
77°
47°
5
61°
45°
6
56°
43°
7
59°
39°
8
61°
47°
9
70°
47°
10
63°
39°
11
61°
38°
12
60°
47°
13
57°
43°
14
66°
45°
15
68°
48°
16
74°
51°
17
74°
52°
18
78°
57°
19
77°
55°
20
75°
57°
21
80°
51°
22
66°
47°
23
67°
50°
24
68°
51°
25
69°
51°
26
69°
52°
27
71°
49°
28
72°
52°
29
76°
56°
30
77°
58°
31
79°
59°
1
78°
58°
2
74°
55°
3
80°
60°
4
81°
62°
5
81°
62°
6
80°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Defiance
Defiance's May 2026 forecast shows daily high temperatures ranging from 57° to 81°, with overnight lows between 38° and 62°. The average high for May is 72° with an average low of 52°. 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 Defiance. See also: June | July | August.
