S
M
T
W
T
F
S
26
62°
39°
27
72°
35°
28
62°
36°
29
65°
48°
30
65°
47°
1
66°
38°
2
62°
43°
3
61°
40°
4
74°
36°
5
84°
58°
6
69°
53°
7
64°
48°
8
67°
40°
9
63°
47°
10
77°
46°
11
62°
45°
12
68°
38°
13
76°
53°
14
64°
51°
15
66°
48°
16
80°
63°
17
84°
59°
18
89°
66°
19
91°
67°
20
87°
55°
21
66°
48°
22
68°
49°
23
73°
50°
24
73°
53°
25
74°
56°
26
77°
57°
27
79°
58°
28
77°
54°
29
70°
54°
30
71°
58°
31
78°
55°
1
72°
52°
2
72°
53°
3
71°
52°
4
72°
52°
5
73°
59°
6
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Devon
Devon's May 2026 forecast shows daily high temperatures ranging from 66° to 91°, with overnight lows between 48° and 67°. The average high for May is 76° 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 May weather will actually feel in Devon. See also: June | July | August.
