S
M
T
W
T
F
S
26
74°
59°
27
79°
59°
28
73°
58°
29
75°
56°
30
79°
54°
31
84°
56°
1
75°
56°
2
73°
55°
3
78°
60°
4
87°
60°
5
87°
59°
6
85°
60°
7
83°
61°
8
82°
60°
9
81°
59°
10
81°
58°
11
79°
59°
12
80°
59°
13
80°
60°
14
78°
58°
15
81°
58°
16
75°
56°
17
80°
59°
18
79°
58°
19
80°
57°
20
78°
57°
21
75°
58°
22
73°
55°
23
78°
60°
24
72°
53°
25
78°
57°
26
80°
60°
27
80°
60°
28
79°
59°
29
75°
57°
30
71°
52°
31
74°
56°
1
70°
57°
2
70°
51°
3
71°
51°
4
74°
55°
5
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Tukwila
Tukwila's August 2026 forecast shows daily high temperatures ranging from 69° to 87°, with overnight lows between 51° and 61°. The average high for August is 78° 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 Tukwila. See also: September | October | November.
