S
M
T
W
T
F
S
26
94°
69°
27
87°
68°
28
85°
67°
29
86°
67°
30
87°
66°
31
89°
68°
1
91°
67°
2
91°
70°
3
90°
69°
4
86°
67°
5
84°
67°
6
89°
68°
7
89°
69°
8
91°
68°
9
90°
69°
10
89°
70°
11
89°
71°
12
85°
70°
13
82°
69°
14
82°
70°
15
84°
67°
16
82°
66°
17
89°
68°
18
93°
67°
19
92°
68°
20
90°
67°
21
93°
70°
22
90°
68°
23
96°
69°
24
98°
68°
25
96°
70°
26
100°
71°
27
93°
75°
28
96°
74°
29
96°
72°
30
91°
70°
31
87°
66°
1
85°
64°
2
82°
62°
3
82°
61°
4
83°
63°
5
91°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Vista
Vista's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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 Vista. See also: September | October | November.
