S
M
T
W
T
F
S
26
85°
66°
27
87°
64°
28
91°
67°
29
91°
67°
30
90°
66°
31
90°
67°
1
91°
67°
2
91°
66°
3
85°
66°
4
85°
64°
5
88°
65°
6
89°
65°
7
90°
64°
8
90°
65°
9
89°
63°
10
91°
64°
11
90°
62°
12
89°
65°
13
87°
64°
14
86°
60°
15
88°
62°
16
90°
64°
17
90°
64°
18
91°
63°
19
90°
65°
20
90°
64°
21
89°
64°
22
90°
63°
23
89°
63°
24
86°
60°
25
88°
58°
26
88°
61°
27
90°
62°
28
90°
58°
29
91°
61°
30
90°
60°
31
90°
59°
1
89°
60°
2
90°
62°
3
90°
57°
4
83°
57°
5
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Prescott Valley
Prescott Valley's August 2026 forecast shows daily high temperatures ranging from 82° to 91°, with overnight lows between 57° and 67°. The average high for August is 89° with an average low of 63°. 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 Prescott Valley. See also: September | October | November.
