S
M
T
W
T
F
S
26
82°
64°
27
79°
57°
28
77°
57°
29
79°
61°
30
81°
59°
31
79°
57°
1
80°
56°
2
78°
55°
3
78°
56°
4
79°
55°
5
78°
56°
6
78°
59°
7
80°
61°
8
77°
60°
9
77°
63°
10
79°
60°
11
79°
62°
12
82°
57°
13
82°
59°
14
85°
55°
15
77°
55°
16
78°
56°
17
81°
58°
18
82°
56°
19
77°
55°
20
77°
54°
21
78°
55°
22
79°
55°
23
76°
59°
24
76°
54°
25
77°
59°
26
81°
61°
27
82°
61°
28
83°
60°
29
84°
53°
30
84°
52°
31
75°
54°
1
75°
54°
2
76°
59°
3
81°
55°
4
78°
51°
5
74°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Valley
Valley's August 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 51° and 64°. The average high for August is 79° with an average low of 57°. 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 Valley. See also: September | October | November.
