S
M
T
W
T
F
S
26
62°
46°
27
57°
42°
28
54°
40°
29
60°
38°
30
56°
39°
1
58°
39°
2
61°
42°
3
60°
44°
4
65°
43°
5
66°
42°
6
69°
44°
7
66°
43°
8
58°
44°
9
62°
44°
10
59°
43°
11
63°
49°
12
64°
47°
13
61°
43°
14
62°
42°
15
68°
50°
16
69°
53°
17
72°
48°
18
69°
43°
19
61°
42°
20
63°
49°
21
65°
54°
22
73°
54°
23
75°
57°
24
75°
56°
25
74°
55°
26
67°
50°
27
66°
48°
28
67°
51°
29
67°
53°
30
66°
49°
31
69°
51°
1
70°
51°
2
73°
48°
3
72°
50°
4
74°
51°
5
71°
48°
6
72°
49°
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 54° to 75°, with overnight lows between 38° and 57°. The average high for May is 66° with an average low of 47°. 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.
