S
M
T
W
T
F
S
26
77°
53°
27
77°
53°
28
78°
54°
29
78°
54°
30
77°
53°
31
77°
53°
1
82°
54°
2
83°
55°
3
79°
54°
4
77°
53°
5
77°
53°
6
78°
54°
7
77°
54°
8
77°
55°
9
78°
54°
10
83°
53°
11
79°
53°
12
83°
52°
13
82°
54°
14
84°
56°
15
83°
57°
16
84°
57°
17
84°
58°
18
85°
58°
19
85°
57°
20
84°
58°
21
84°
58°
22
85°
57°
23
84°
57°
24
84°
56°
25
83°
57°
26
84°
58°
27
84°
57°
28
83°
57°
29
84°
55°
30
82°
54°
31
81°
52°
1
80°
52°
2
79°
51°
3
78°
50°
4
77°
51°
5
77°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Valle Vista
Valle Vista's August 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 50° and 58°. The average high for August is 81° with an average low of 55°. 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 Valle Vista. See also: September | October | November.