S
M
T
W
T
F
S
26
59°
42°
27
63°
35°
28
56°
39°
29
54°
44°
30
53°
44°
1
64°
45°
2
59°
46°
3
53°
42°
4
71°
49°
5
75°
57°
6
69°
58°
7
68°
48°
8
62°
43°
9
60°
47°
10
61°
44°
11
62°
46°
12
63°
48°
13
61°
48°
14
63°
47°
15
61°
49°
16
66°
51°
17
65°
48°
18
71°
53°
19
71°
52°
20
66°
52°
21
67°
53°
22
67°
53°
23
68°
50°
24
64°
49°
25
66°
49°
26
66°
54°
27
67°
52°
28
66°
50°
29
66°
48°
30
67°
52°
31
68°
56°
1
70°
54°
2
71°
52°
3
69°
56°
4
72°
57°
5
70°
56°
6
69°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Braintree
Braintree's May 2026 forecast shows daily high temperatures ranging from 60° to 75°, with overnight lows between 43° and 58°. The average high for May is 67° with an average low of 51°. 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 Braintree. See also: June | July | August.