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
62°
43°
23
64°
50°
24
57°
56°
25
64°
55°
26
74°
56°
27
79°
54°
28
69°
48°
29
68°
48°
30
70°
54°
31
70°
54°
1
69°
57°
2
71°
54°
3
71°
55°
4
74°
60°
5
72°
57°
6
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cape Cod Coast Guard Air Station
Cape Cod Coast Guard Air Station's May 2026 forecast shows daily high temperatures ranging from 57° to 79°, with overnight lows between 43° and 60°. The average high for May is 69° with an average low of 54°. 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 Coast Guard Air Station. See also: June | July | August.
