S
M
T
W
T
F
S
26
65°
37°
27
72°
31°
28
68°
35°
29
65°
34°
30
52°
45°
1
60°
38°
2
55°
36°
3
53°
34°
4
66°
42°
5
76°
54°
6
64°
46°
7
58°
39°
8
54°
34°
9
56°
39°
10
57°
40°
11
62°
41°
12
60°
44°
13
61°
46°
14
63°
45°
15
62°
42°
16
70°
49°
17
71°
48°
18
72°
49°
19
71°
48°
20
69°
49°
21
70°
48°
22
69°
50°
23
65°
42°
24
62°
43°
25
63°
43°
26
64°
49°
27
65°
44°
28
64°
44°
29
65°
45°
30
65°
44°
31
67°
52°
1
68°
47°
2
67°
45°
3
68°
52°
4
72°
52°
5
69°
49°
6
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Brookline
Brookline's May 2026 forecast shows daily high temperatures ranging from 53° to 76°, with overnight lows between 34° and 54°. The average high for May is 65° with an average low of 45°. 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 Brookline. See also: June | July | August.
