S
M
T
W
T
F
S
26
93°
73°
27
91°
74°
28
96°
73°
29
94°
73°
30
89°
67°
31
93°
67°
1
88°
68°
2
86°
74°
3
92°
72°
4
89°
71°
5
92°
69°
6
87°
71°
7
92°
70°
8
93°
71°
9
94°
71°
10
90°
72°
11
95°
73°
12
96°
71°
13
96°
75°
14
99°
75°
15
98°
73°
16
98°
74°
17
100°
76°
18
97°
72°
19
98°
71°
20
97°
75°
21
93°
73°
22
93°
71°
23
98°
69°
24
94°
67°
25
94°
66°
26
93°
68°
27
90°
72°
28
90°
73°
29
90°
71°
30
92°
72°
31
95°
70°
1
98°
71°
2
98°
72°
3
99°
73°
4
97°
72°
5
100°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Washington
Washington's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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.
