S
M
T
W
T
F
S
26
31°
14°
27
38°
16°
28
41°
23°
29
52°
33°
30
58°
40°
1
55°
33°
2
53°
33°
3
59°
38°
4
66°
37°
5
63°
36°
6
55°
34°
7
59°
32°
8
61°
37°
9
75°
48°
10
60°
42°
11
57°
40°
12
57°
38°
13
63°
40°
14
67°
42°
15
68°
43°
16
67°
43°
17
61°
38°
18
59°
39°
19
62°
43°
20
66°
44°
21
68°
45°
22
69°
44°
23
62°
41°
24
65°
42°
25
70°
44°
26
69°
43°
27
68°
44°
28
61°
41°
29
61°
42°
30
64°
44°
31
65°
46°
1
63°
45°
2
62°
41°
3
70°
47°
4
71°
48°
5
70°
47°
6
70°
48°
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 31° to 75°, with overnight lows between 14° and 48°. The average high for May is 61° with an average low of 39°. 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.
