S
M
T
W
T
F
S
26
68°
55°
27
67°
57°
28
69°
54°
29
69°
57°
30
68°
57°
31
68°
56°
1
67°
54°
2
67°
53°
3
66°
54°
4
68°
53°
5
69°
52°
6
69°
57°
7
70°
53°
8
69°
57°
9
69°
54°
10
71°
57°
11
71°
57°
12
70°
54°
13
67°
55°
14
66°
51°
15
66°
55°
16
69°
56°
17
67°
54°
18
66°
53°
19
68°
56°
20
69°
54°
21
68°
56°
22
66°
51°
23
67°
56°
24
67°
55°
25
69°
56°
26
Hist. Avg.
64°
53°
27
Hist. Avg.
64°
53°
28
Hist. Avg.
64°
52°
29
Hist. Avg.
64°
52°
30
Hist. Avg.
64°
52°
31
Hist. Avg.
63°
52°
1
Hist. Avg.
63°
52°
2
Hist. Avg.
63°
52°
3
Hist. Avg.
63°
52°
4
Hist. Avg.
63°
51°
5
Hist. Avg.
62°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Washington
Washington's August 2026 forecast shows daily high temperatures ranging from 66° to 71°, with overnight lows between 51° and 57°. The average high for August is 68° with an average low of 55°. 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. See also: September | October | November.
