S
M
T
W
T
F
S
28
69°
57°
29
64°
56°
30
N/A
1
68°
54°
2
67°
57°
3
74°
55°
4
75°
54°
5
74°
53°
6
77°
52°
7
76°
54°
8
77°
55°
9
78°
55°
10
78°
57°
11
76°
56°
12
80°
56°
13
82°
58°
14
77°
55°
15
74°
59°
16
73°
60°
17
71°
55°
18
75°
56°
19
80°
60°
20
80°
59°
21
79°
60°
22
77°
59°
23
79°
60°
24
73°
60°
25
75°
59°
26
80°
60°
27
80°
60°
28
81°
59°
29
80°
58°
30
81°
60°
31
82°
61°
1
81°
60°
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 67° to 82°, with overnight lows between 52° and 61°. The average high for July is 77° 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.
