S
M
T
W
T
F
S
26
65°
45°
27
65°
46°
28
56°
48°
29
67°
45°
30
73°
49°
1
60°
49°
2
62°
46°
3
62°
50°
4
63°
52°
5
58°
51°
6
58°
47°
7
60°
48°
8
65°
50°
9
67°
50°
10
56°
45°
11
58°
37°
12
58°
38°
13
56°
47°
14
55°
44°
15
59°
40°
16
55°
43°
17
58°
45°
18
53°
46°
19
60°
53°
20
61°
54°
21
71°
55°
22
73°
55°
23
N/A
24
80°
52°
25
85°
57°
26
85°
60°
27
80°
57°
28
73°
55°
29
73°
52°
30
70°
53°
31
68°
52°
1
66°
53°
2
63°
49°
3
62°
49°
4
61°
50°
5
61°
50°
6
61°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Defynnog
Defynnog's May 2026 forecast shows daily high temperatures ranging from 61° to 85°, with overnight lows between 47° and 60°. The average high for May is 71° 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 May weather will actually feel in Defynnog. See also: June | July | August.
