S
M
T
W
T
F
S
28
70°
57°
29
73°
59°
30
72°
60°
1
74°
65°
2
68°
54°
3
69°
57°
4
69°
57°
5
68°
56°
6
69°
54°
7
70°
57°
8
70°
59°
9
74°
58°
10
70°
57°
11
71°
58°
12
70°
59°
13
72°
59°
14
71°
58°
15
71°
59°
16
73°
59°
17
71°
60°
18
72°
59°
19
72°
58°
20
73°
61°
21
75°
61°
22
76°
60°
23
74°
61°
24
75°
60°
25
74°
60°
26
72°
59°
27
74°
57°
28
73°
61°
29
77°
59°
30
78°
60°
31
78°
56°
1
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Summerside
Summerside's July 2026 forecast shows daily high temperatures ranging from 68° to 78°, with overnight lows between 54° and 65°. The average high for July is 72° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Summerside. See also: August | September | October.