S
M
T
W
T
F
S
26
51°
41°
27
55°
45°
28
51°
43°
29
49°
43°
30
56°
46°
1
59°
46°
2
57°
45°
3
53°
41°
4
60°
48°
5
63°
52°
6
59°
54°
7
55°
48°
8
56°
42°
9
55°
47°
10
56°
50°
11
58°
48°
12
58°
47°
13
57°
48°
14
60°
49°
15
61°
46°
16
62°
51°
17
63°
50°
18
63°
52°
19
62°
51°
20
58°
51°
21
59°
52°
22
59°
52°
23
60°
51°
24
57°
50°
25
59°
50°
26
60°
53°
27
60°
52°
28
61°
51°
29
60°
48°
30
60°
53°
31
62°
55°
1
64°
54°
2
63°
52°
3
63°
55°
4
65°
55°
5
63°
56°
6
63°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wellfleet
Wellfleet's May 2026 forecast shows daily high temperatures ranging from 53° to 65°, with overnight lows between 41° and 56°. The average high for May is 60° 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 Wellfleet. See also: June | July | August.
