S
M
T
W
T
F
S
31
58°
46°
1
50°
47°
2
51°
46°
3
61°
46°
4
62°
53°
5
68°
46°
6
66°
45°
7
56°
45°
8
68°
42°
9
68°
46°
10
62°
46°
11
62°
46°
12
63°
47°
13
69°
49°
14
73°
50°
15
72°
52°
16
70°
48°
17
70°
49°
18
66°
48°
19
71°
49°
20
65°
50°
21
64°
51°
22
65°
52°
23
65°
51°
24
67°
52°
25
72°
53°
26
72°
54°
27
68°
53°
28
68°
54°
29
67°
53°
30
68°
54°
1
71°
55°
2
75°
56°
3
76°
56°
4
75°
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 56° to 76°, with overnight lows between 42° and 57°. The average high for June is 68° with an average low of 50°. 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.