S
M
T
W
T
F
S
31
78°
51°
1
74°
56°
2
78°
53°
3
81°
50°
4
87°
60°
5
85°
64°
6
87°
68°
7
85°
68°
8
86°
66°
9
87°
68°
10
84°
68°
11
86°
67°
12
88°
68°
13
88°
66°
14
86°
67°
15
85°
65°
16
85°
67°
17
84°
61°
18
82°
65°
19
83°
65°
20
86°
66°
21
87°
61°
22
80°
59°
23
80°
60°
24
87°
68°
25
88°
67°
26
88°
66°
27
83°
62°
28
84°
66°
29
83°
67°
30
83°
67°
1
84°
66°
2
83°
62°
3
83°
62°
4
85°
64°
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 80° to 88°, with overnight lows between 59° and 68°. The average high for June is 85° with an average low of 65°. 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.