S
M
T
W
T
F
S
26
55°
39°
27
59°
40°
28
63°
45°
29
45°
38°
30
48°
35°
1
42°
31°
2
54°
27°
3
66°
44°
4
76°
42°
5
56°
36°
6
49°
37°
7
53°
36°
8
55°
39°
9
57°
37°
10
55°
40°
11
61°
42°
12
62°
43°
13
63°
44°
14
63°
47°
15
65°
45°
16
67°
46°
17
69°
50°
18
63°
50°
19
65°
51°
20
68°
51°
21
66°
42°
22
60°
42°
23
61°
45°
24
61°
43°
25
62°
44°
26
62°
45°
27
61°
45°
28
62°
46°
29
64°
51°
30
64°
54°
31
68°
49°
1
69°
53°
2
70°
56°
3
73°
56°
4
75°
55°
5
75°
58°
6
74°
58°
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 49° to 76°, with overnight lows between 36° and 58°. The average high for May is 64° 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 Plymouth. See also: June | July | August.
