S
M
T
W
T
F
S
26
76°
58°
27
81°
61°
28
80°
58°
29
77°
57°
30
81°
60°
31
75°
57°
1
74°
55°
2
78°
58°
3
81°
60°
4
81°
61°
5
80°
60°
6
80°
61°
7
81°
62°
8
81°
62°
9
82°
64°
10
72°
55°
11
72°
53°
12
74°
53°
13
73°
56°
14
74°
55°
15
73°
54°
16
74°
62°
17
80°
63°
18
81°
62°
19
82°
59°
20
82°
55°
21
81°
54°
22
80°
54°
23
74°
60°
24
79°
61°
25
80°
54°
26
81°
55°
27
80°
58°
28
80°
52°
29
74°
53°
30
72°
55°
31
79°
52°
1
73°
52°
2
72°
53°
3
71°
59°
4
75°
58°
5
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in West Seattle
West Seattle's August 2026 forecast shows daily high temperatures ranging from 71° to 82°, with overnight lows between 52° and 64°. The average high for August 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 August weather will actually feel in West Seattle. See also: September | October | November.
