S
M
T
W
T
F
S
26
71°
33°
27
75°
35°
28
71°
37°
29
69°
38°
30
53°
45°
1
62°
36°
2
55°
40°
3
54°
33°
4
72°
36°
5
84°
49°
6
63°
47°
7
60°
35°
8
59°
31°
9
51°
30°
10
68°
43°
11
62°
36°
12
62°
32°
13
49°
38°
14
56°
48°
15
65°
52°
16
79°
47°
17
85°
57°
18
90°
50°
19
90°
59°
20
82°
64°
21
66°
41°
22
71°
35°
23
68°
40°
24
54°
50°
25
76°
51°
26
83°
57°
27
82°
52°
28
68°
47°
29
63°
45°
30
60°
43°
31
68°
44°
1
67°
44°
2
68°
48°
3
72°
50°
4
75°
52°
5
78°
54°
6
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mount Sunapee
Mount Sunapee's May 2026 forecast shows daily high temperatures ranging from 60° to 83°, with overnight lows between 43° and 57°. The average high for May is 72° 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 Mount Sunapee. See also: June | July | August.
