S
M
T
W
T
F
S
26
63°
38°
27
69°
41°
28
67°
49°
29
51°
41°
30
47°
31°
1
47°
30°
2
44°
29°
3
52°
43°
4
60°
47°
5
54°
39°
6
52°
38°
7
48°
35°
8
47°
37°
9
51°
38°
10
52°
38°
11
52°
39°
12
58°
43°
13
57°
42°
14
61°
42°
15
61°
41°
16
59°
42°
17
60°
45°
18
63°
49°
19
66°
49°
20
67°
48°
21
68°
50°
22
66°
47°
23
63°
49°
24
66°
44°
25
61°
42°
26
62°
50°
27
64°
52°
28
72°
51°
29
67°
50°
30
65°
48°
31
67°
43°
1
63°
45°
2
62°
44°
3
64°
45°
4
64°
45°
5
65°
47°
6
65°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wellesley
Wellesley's May 2026 forecast shows daily high temperatures ranging from 44° to 72°, with overnight lows between 29° and 52°. The average high for May is 60° with an average low of 43°. 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 Wellesley. See also: June | July | August.
