S
M
T
W
T
F
S
26
66°
39°
27
70°
41°
28
59°
45°
29
68°
43°
30
72°
48°
1
N/A
2
59°
52°
3
58°
49°
4
59°
49°
5
58°
47°
6
58°
46°
7
58°
47°
8
60°
49°
9
59°
50°
10
59°
50°
11
58°
48°
12
59°
48°
13
58°
49°
14
57°
43°
15
60°
50°
16
60°
50°
17
61°
49°
18
62°
50°
19
61°
49°
20
59°
48°
21
59°
47°
22
60°
48°
23
60°
47°
24
61°
47°
25
59°
45°
26
59°
46°
27
61°
52°
28
62°
53°
29
64°
52°
30
63°
47°
31
59°
46°
1
59°
46°
2
58°
47°
3
59°
47°
4
59°
48°
5
60°
47°
6
60°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Weymouth
Weymouth's May 2026 forecast shows daily high temperatures ranging from 57° to 64°, with overnight lows between 43° and 53°. The average high for May is 60° with an average low of 48°. 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 Weymouth. See also: June | July | August.