S
M
T
W
T
F
S
26
60°
46°
27
63°
48°
28
56°
50°
29
61°
47°
30
62°
53°
1
59°
52°
2
57°
50°
3
57°
51°
4
59°
51°
5
58°
51°
6
N/A
7
58°
49°
8
63°
52°
9
63°
51°
10
64°
45°
11
59°
43°
12
57°
45°
13
56°
45°
14
55°
44°
15
56°
46°
16
58°
48°
17
59°
49°
18
58°
48°
19
58°
49°
20
58°
50°
21
59°
49°
22
58°
50°
23
58°
52°
24
59°
53°
25
62°
53°
26
63°
52°
27
63°
53°
28
59°
51°
29
60°
50°
30
62°
54°
31
62°
54°
1
64°
53°
2
65°
54°
3
65°
54°
4
63°
55°
5
64°
55°
6
66°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Plymouth
Plymouth's May 2026 forecast shows daily high temperatures ranging from 55° to 66°, with overnight lows between 43° and 55°. 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 Plymouth. See also: June | July | August.
