S
M
T
W
T
F
S
26
77°
57°
27
78°
57°
28
79°
56°
29
78°
55°
30
79°
57°
31
80°
58°
1
79°
57°
2
78°
57°
3
79°
54°
4
70°
52°
5
71°
52°
6
72°
50°
7
72°
53°
8
78°
55°
9
78°
55°
10
77°
54°
11
76°
52°
12
73°
50°
13
72°
50°
14
68°
46°
15
69°
48°
16
72°
56°
17
78°
55°
18
80°
56°
19
81°
55°
20
79°
47°
21
75°
54°
22
79°
56°
23
80°
50°
24
69°
47°
25
70°
47°
26
71°
49°
27
73°
46°
28
72°
48°
29
72°
47°
30
67°
46°
31
72°
51°
1
75°
54°
2
77°
54°
3
76°
53°
4
67°
43°
5
68°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Duvall
Duvall's August 2026 forecast shows daily high temperatures ranging from 67° to 81°, with overnight lows between 43° and 58°. The average high for August is 75° with an average low of 52°. 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 Duvall. See also: September | October | November.
