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°
39°
3
52°
33°
4
71°
36°
5
83°
44°
6
66°
48°
7
58°
43°
8
56°
30°
9
52°
46°
10
67°
51°
11
56°
38°
12
57°
35°
13
59°
41°
14
60°
43°
15
64°
44°
16
68°
49°
17
66°
46°
18
68°
50°
19
70°
52°
20
72°
53°
21
73°
46°
22
63°
42°
23
64°
43°
24
65°
46°
25
69°
49°
26
72°
49°
27
67°
46°
28
66°
43°
29
65°
44°
30
68°
47°
31
74°
52°
1
74°
52°
2
71°
48°
3
71°
51°
4
75°
54°
5
76°
54°
6
75°
55°
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 52° to 76°, with overnight lows between 30° and 55°. The average high for May is 67° with an average low of 47°. 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.
