S
M
T
W
T
F
S
26
64°
47°
27
66°
48°
28
69°
43°
29
73°
44°
30
66°
50°
1
67°
53°
2
66°
53°
3
67°
50°
4
68°
46°
5
66°
49°
6
70°
46°
7
71°
52°
8
66°
53°
9
68°
51°
10
71°
52°
11
74°
52°
12
67°
50°
13
69°
51°
14
71°
48°
15
70°
49°
16
65°
47°
17
63°
46°
18
78°
44°
19
85°
46°
20
78°
48°
21
70°
49°
22
67°
49°
23
66°
52°
24
66°
51°
25
67°
50°
26
66°
47°
27
67°
50°
28
68°
50°
29
66°
49°
30
68°
51°
31
67°
50°
1
81°
58°
2
73°
55°
3
74°
55°
4
73°
54°
5
73°
55°
6
72°
55°
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 85°, with overnight lows between 46° and 58°. The average high for May is 71° with an average low of 51°. 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.
