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
N/A
12
73°
51°
13
80°
55°
14
83°
56°
15
84°
57°
16
81°
59°
17
78°
56°
18
76°
57°
19
82°
58°
20
77°
58°
21
79°
57°
22
80°
57°
23
79°
56°
24
78°
55°
25
77°
54°
26
77°
57°
27
79°
58°
28
80°
58°
29
73°
55°
30
70°
53°
31
69°
52°
1
69°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Sammamish
Sammamish's July 2026 forecast shows daily high temperatures ranging from 69° to 84°, with overnight lows between 51° and 59°. The average high for July is 77° with an average low of 56°. 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 Sammamish. See also: August | September | October.
