S
M
T
W
T
F
S
26
62°
41°
27
66°
42°
28
65°
50°
29
52°
43°
30
55°
41°
1
50°
40°
2
48°
33°
3
65°
32°
4
76°
46°
5
62°
49°
6
55°
45°
7
58°
38°
8
65°
41°
9
72°
47°
10
62°
39°
11
60°
37°
12
59°
35°
13
60°
45°
14
66°
46°
15
72°
39°
16
81°
49°
17
86°
60°
18
89°
65°
19
86°
56°
20
63°
40°
21
66°
47°
22
64°
53°
23
67°
56°
24
69°
52°
25
73°
54°
26
77°
56°
27
75°
55°
28
78°
57°
29
76°
57°
30
78°
59°
31
79°
60°
1
75°
52°
2
77°
56°
3
74°
57°
4
69°
56°
5
71°
56°
6
74°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Plymouth
Plymouth's May 2026 forecast shows daily high temperatures ranging from 63° to 86°, with overnight lows between 40° and 60°. The average high for May is 73° with an average low of 55°. 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 Plymouth. See also: June | July | August.
