S
M
T
W
T
F
S
26
54°
39°
27
61°
43°
28
52°
43°
29
50°
45°
30
57°
46°
1
61°
46°
2
59°
41°
3
54°
39°
4
63°
39°
5
64°
48°
6
68°
54°
7
61°
48°
8
59°
41°
9
63°
39°
10
70°
52°
11
57°
45°
12
59°
43°
13
63°
46°
14
61°
48°
15
57°
43°
16
70°
43°
17
79°
57°
18
73°
57°
19
79°
61°
20
81°
61°
21
64°
52°
22
61°
48°
23
64°
46°
24
55°
50°
25
64°
55°
26
75°
55°
27
73°
55°
28
66°
50°
29
65°
53°
30
58°
47°
31
63°
48°
1
64°
48°
2
63°
50°
3
69°
54°
4
68°
56°
5
72°
55°
6
74°
56°
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 58° to 74°, with overnight lows between 47° and 56°. The average high for May is 67° with an average low of 52°. 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.
