S
M
T
W
T
F
S
26
56°
41°
27
59°
44°
28
59°
43°
29
56°
42°
30
57°
44°
1
59°
43°
2
59°
39°
3
58°
40°
4
60°
46°
5
62°
45°
6
61°
44°
7
61°
42°
8
64°
42°
9
61°
43°
10
62°
49°
11
62°
43°
12
61°
43°
13
63°
49°
14
69°
51°
15
64°
50°
16
66°
49°
17
65°
50°
18
68°
53°
19
73°
51°
20
72°
47°
21
64°
46°
22
66°
50°
23
68°
51°
24
70°
54°
25
74°
54°
26
75°
52°
27
67°
51°
28
67°
55°
29
68°
54°
30
69°
51°
31
68°
55°
1
76°
54°
2
75°
57°
3
76°
56°
4
75°
57°
5
77°
55°
6
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Chestnut Hill
Chestnut Hill's May 2026 forecast shows daily high temperatures ranging from 56° to 77°, with overnight lows between 39° and 57°. The average high for May is 66° with an average low of 49°. 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 Chestnut Hill. See also: June | July | August.
