S
M
T
W
T
F
S
31
67°
38°
1
70°
45°
2
78°
40°
3
86°
44°
4
88°
49°
5
88°
53°
6
80°
57°
7
73°
49°
8
83°
46°
9
89°
48°
10
91°
57°
11
91°
69°
12
92°
70°
13
87°
58°
14
85°
54°
15
76°
54°
16
78°
50°
17
81°
49°
18
74°
60°
19
75°
60°
20
75°
57°
21
75°
53°
22
72°
51°
23
76°
56°
24
77°
51°
25
81°
54°
26
76°
59°
27
81°
59°
28
84°
56°
29
86°
53°
30
87°
54°
1
90°
72°
2
95°
73°
3
94°
69°
4
87°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Sunapee
Sunapee's June 2026 forecast shows daily high temperatures ranging from 87° to 95°, with overnight lows between 61° and 73°. The average high for June is 92° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Sunapee. See also: July | August | September.