S
M
T
W
T
F
S
26
54°
42°
27
55°
43°
28
55°
41°
29
54°
41°
30
55°
42°
1
56°
46°
2
63°
45°
3
57°
44°
4
56°
42°
5
57°
42°
6
58°
44°
7
56°
43°
8
57°
45°
9
58°
44°
10
57°
42°
11
59°
46°
12
59°
47°
13
60°
45°
14
60°
46°
15
59°
43°
16
59°
43°
17
61°
51°
18
67°
51°
19
63°
50°
20
63°
51°
21
62°
50°
22
65°
46°
23
64°
47°
24
65°
46°
25
63°
47°
26
66°
53°
27
70°
52°
28
71°
54°
29
71°
54°
30
70°
53°
31
65°
54°
1
64°
55°
2
65°
55°
3
65°
53°
4
71°
53°
5
72°
57°
6
70°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cape Cod Airport
Cape Cod Airport's May 2026 forecast shows daily high temperatures ranging from 54° to 72°, with overnight lows between 41° and 57°. The average high for May is 62° with an average low of 48°. 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 Cape Cod Airport. See also: June | July | August.
