S
M
T
W
T
F
S
26
58°
46°
27
58°
43°
28
57°
44°
29
60°
42°
30
55°
41°
1
55°
44°
2
56°
42°
3
56°
39°
4
55°
39°
5
55°
38°
6
56°
38°
7
58°
42°
8
58°
47°
9
59°
46°
10
61°
44°
11
58°
40°
12
56°
41°
13
57°
41°
14
58°
44°
15
59°
43°
16
60°
44°
17
59°
45°
18
60°
48°
19
61°
44°
20
61°
46°
21
62°
49°
22
63°
49°
23
62°
51°
24
63°
53°
25
68°
52°
26
68°
52°
27
63°
53°
28
70°
53°
29
73°
49°
30
68°
49°
31
64°
48°
1
63°
50°
2
66°
49°
3
68°
55°
4
73°
55°
5
74°
54°
6
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Martha's Vineyard Airport
Martha's Vineyard Airport's May 2026 forecast shows daily high temperatures ranging from 55° to 74°, with overnight lows between 38° and 55°. The average high for May is 62° with an average low of 46°. 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 Martha's Vineyard Airport. See also: June | July | August.