S
M
T
W
T
F
S
26
62°
37°
27
66°
36°
28
56°
41°
29
51°
44°
30
53°
45°
1
64°
43°
2
57°
41°
3
57°
41°
4
76°
40°
5
82°
51°
6
72°
55°
7
65°
47°
8
63°
41°
9
56°
37°
10
68°
49°
11
68°
49°
12
64°
40°
13
56°
42°
14
59°
49°
15
56°
49°
16
79°
47°
17
86°
58°
18
69°
54°
19
95°
53°
20
89°
68°
21
70°
54°
22
64°
42°
23
62°
50°
24
54°
50°
25
68°
50°
26
80°
60°
27
76°
54°
28
66°
46°
29
61°
49°
30
64°
44°
31
65°
51°
1
70°
50°
2
66°
50°
3
72°
51°
4
70°
52°
5
73°
50°
6
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Exeter
Exeter's May 2026 forecast shows daily high temperatures ranging from 54° to 80°, with overnight lows between 44° and 60°. The average high for May is 68° with an average low of 50°. 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 Exeter. See also: June | July | August.