S
M
T
W
T
F
S
31
58°
46°
1
50°
47°
2
51°
46°
3
63°
46°
4
67°
44°
5
63°
41°
6
65°
44°
7
57°
42°
8
70°
47°
9
66°
48°
10
66°
49°
11
64°
48°
12
69°
48°
13
68°
49°
14
68°
50°
15
71°
49°
16
70°
48°
17
65°
49°
18
66°
51°
19
65°
49°
20
65°
46°
21
66°
48°
22
67°
52°
23
63°
47°
24
65°
46°
25
66°
48°
26
68°
53°
27
73°
54°
28
75°
55°
29
75°
55°
30
76°
54°
1
77°
55°
2
69°
53°
3
71°
55°
4
75°
54°
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 57° to 77°, with overnight lows between 41° and 55°. The average high for June is 68° 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 June weather will actually feel in Summerside. See also: July | August | September.