S
M
T
W
T
F
S
26
72°
54°
27
79°
54°
28
74°
51°
29
78°
46°
30
80°
46°
31
87°
47°
1
72°
53°
2
73°
48°
3
76°
44°
4
83°
46°
5
90°
47°
6
90°
50°
7
86°
54°
8
85°
52°
9
80°
47°
10
77°
50°
11
80°
50°
12
79°
56°
13
81°
52°
14
78°
55°
15
75°
56°
16
76°
55°
17
82°
51°
18
80°
53°
19
85°
49°
20
89°
51°
21
81°
53°
22
77°
58°
23
75°
52°
24
84°
52°
25
85°
54°
26
75°
53°
27
75°
51°
28
75°
48°
29
76°
49°
30
74°
50°
31
76°
49°
1
75°
49°
2
74°
51°
3
75°
50°
4
78°
52°
5
79°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Washington State Capitol
Washington State Capitol's August 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 47° and 54°. The average high for August is 77° with an average low of 51°. 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 Washington State Capitol. See also: September | October | November.
