S
M
T
W
T
F
S
26
53°
43°
27
53°
45°
28
54°
43°
29
53°
42°
30
54°
42°
1
55°
48°
2
63°
47°
3
56°
45°
4
56°
44°
5
57°
43°
6
57°
44°
7
56°
45°
8
56°
46°
9
57°
45°
10
57°
44°
11
59°
47°
12
59°
48°
13
60°
47°
14
59°
47°
15
59°
44°
16
60°
45°
17
61°
53°
18
67°
53°
19
63°
52°
20
64°
51°
21
63°
52°
22
64°
47°
23
64°
48°
24
65°
48°
25
64°
49°
26
67°
54°
27
71°
53°
28
72°
55°
29
72°
55°
30
71°
54°
31
66°
55°
1
66°
56°
2
67°
56°
3
67°
55°
4
72°
54°
5
73°
58°
6
72°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Yarmouth
Yarmouth's May 2026 forecast shows daily high temperatures ranging from 53° to 73°, with overnight lows between 42° and 59°. The average high for May is 62° with an average low of 49°. 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 Yarmouth. See also: June | July | August.