S
M
T
W
T
F
S
31
51°
39°
1
59°
35°
2
62°
40°
3
64°
40°
4
77°
52°
5
56°
41°
6
72°
40°
7
60°
46°
8
61°
47°
9
80°
52°
10
79°
54°
11
83°
59°
12
63°
48°
13
58°
51°
14
66°
50°
15
68°
57°
16
69°
49°
17
77°
47°
18
75°
56°
19
70°
55°
20
62°
48°
21
54°
47°
22
67°
52°
23
58°
49°
24
66°
52°
25
72°
55°
26
71°
57°
27
69°
55°
28
70°
57°
29
73°
59°
30
72°
60°
1
74°
65°
2
68°
54°
3
69°
57°
4
69°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Summerside
Summerside's June 2026 forecast shows daily high temperatures ranging from 54° to 75°, with overnight lows between 47° and 65°. The average high for June is 68° with an average low of 55°. 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 Summerside. See also: July | August | September.