S
M
T
W
T
F
S
26
61°
31°
27
63°
34°
28
57°
32°
29
44°
39°
30
46°
41°
1
57°
35°
2
48°
43°
3
46°
39°
4
54°
46°
5
54°
47°
6
59°
46°
7
54°
44°
8
55°
39°
9
56°
40°
10
54°
41°
11
57°
38°
12
60°
40°
13
58°
42°
14
59°
43°
15
59°
43°
16
60°
42°
17
59°
43°
18
59°
47°
19
58°
47°
20
63°
46°
21
63°
48°
22
66°
44°
23
61°
46°
24
59°
46°
25
62°
45°
26
63°
46°
27
62°
45°
28
61°
47°
29
61°
50°
30
64°
49°
31
63°
48°
1
64°
45°
2
63°
45°
3
64°
46°
4
63°
47°
5
63°
45°
6
64°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Blue Hill
South Blue Hill's May 2026 forecast shows daily high temperatures ranging from 46° to 66°, with overnight lows between 35° and 50°. The average high for May is 59° with an average low of 44°. 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 South Blue Hill. See also: June | July | August.
