S
M
T
W
T
F
S
26
77°
58°
27
78°
57°
28
81°
59°
29
80°
59°
30
80°
58°
31
77°
59°
1
80°
58°
2
77°
59°
3
77°
59°
4
78°
58°
5
81°
59°
6
79°
58°
7
80°
59°
8
80°
58°
9
75°
56°
10
74°
54°
11
74°
56°
12
75°
54°
13
74°
54°
14
74°
56°
15
75°
58°
16
79°
56°
17
75°
53°
18
74°
51°
19
74°
51°
20
75°
54°
21
74°
56°
22
76°
54°
23
74°
50°
24
73°
49°
25
74°
50°
26
73°
49°
27
73°
48°
28
72°
48°
29
77°
54°
30
77°
54°
31
76°
50°
1
77°
49°
2
72°
53°
3
71°
50°
4
76°
47°
5
70°
46°
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 70° to 81°, with overnight lows between 46° and 59°. The average high for August is 76° with an average low of 54°. 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.
