S
M
T
W
T
F
S
28
65°
51°
29
64°
52°
30
65°
48°
1
64°
48°
2
65°
49°
3
76°
49°
4
77°
52°
5
75°
52°
6
77°
53°
7
78°
50°
8
77°
48°
9
76°
53°
10
77°
53°
11
77°
55°
12
78°
56°
13
78°
57°
14
77°
56°
15
76°
53°
16
69°
46°
17
72°
49°
18
75°
47°
19
75°
50°
20
73°
50°
21
74°
54°
22
77°
53°
23
73°
52°
24
69°
55°
25
70°
54°
26
67°
46°
27
70°
47°
28
75°
45°
29
73°
47°
30
70°
45°
31
70°
50°
1
73°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lopez Island
Lopez Island's July 2026 forecast shows daily high temperatures ranging from 64° to 78°, with overnight lows between 45° and 57°. The average high for July is 73° with an average low of 51°. 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 Lopez Island. See also: August | September | October.