S
M
T
W
T
F
S
28
69°
57°
29
64°
56°
30
64°
55°
1
67°
55°
2
69°
56°
3
75°
61°
4
71°
59°
5
76°
56°
6
85°
56°
7
78°
56°
8
72°
60°
9
79°
58°
10
81°
59°
11
75°
60°
12
73°
58°
13
79°
52°
14
86°
58°
15
86°
58°
16
72°
58°
17
78°
59°
18
78°
59°
19
80°
57°
20
82°
58°
21
86°
59°
22
84°
58°
23
84°
58°
24
80°
56°
25
79°
58°
26
77°
57°
27
78°
56°
28
82°
60°
29
75°
57°
30
73°
55°
31
72°
54°
1
72°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Issaquah
Issaquah's July 2026 forecast shows daily high temperatures ranging from 72° to 86°, with overnight lows between 54° and 60°. The average high for July is 79° with an average low of 57°. 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 Issaquah. See also: August | September | October.
