S
M
T
W
T
F
S
26
78°
60°
27
77°
59°
28
73°
59°
29
69°
58°
30
69°
58°
31
72°
57°
1
76°
59°
2
77°
60°
3
70°
51°
4
70°
51°
5
73°
52°
6
76°
55°
7
70°
54°
8
71°
52°
9
70°
60°
10
77°
62°
11
79°
61°
12
80°
63°
13
80°
61°
14
79°
62°
15
79°
57°
16
78°
52°
17
77°
55°
18
74°
58°
19
69°
54°
20
68°
57°
21
68°
49°
22
69°
49°
23
68°
51°
24
70°
54°
25
74°
58°
26
76°
59°
27
77°
60°
28
78°
61°
29
78°
61°
30
77°
60°
31
77°
59°
1
76°
58°
2
75°
55°
3
73°
55°
4
71°
57°
5
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Seattle Heights
Seattle Heights's August 2026 forecast shows daily high temperatures ranging from 68° to 80°, with overnight lows between 49° and 63°. The average high for August is 74° 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 Seattle Heights. See also: September | October | November.
