S
M
T
W
T
F
S
26
97°
60°
27
97°
59°
28
96°
60°
29
97°
60°
30
98°
59°
31
98°
59°
1
97°
57°
2
94°
55°
3
91°
57°
4
93°
53°
5
90°
58°
6
Hist. Avg.
97°
65°
7
Hist. Avg.
97°
65°
8
Hist. Avg.
96°
65°
9
Hist. Avg.
96°
65°
10
Hist. Avg.
96°
65°
11
Hist. Avg.
96°
65°
12
Hist. Avg.
96°
64°
13
Hist. Avg.
96°
64°
14
Hist. Avg.
96°
64°
15
Hist. Avg.
96°
64°
16
Hist. Avg.
95°
64°
17
Hist. Avg.
95°
64°
18
Hist. Avg.
95°
64°
19
Hist. Avg.
95°
64°
20
Hist. Avg.
95°
63°
21
Hist. Avg.
94°
63°
22
Hist. Avg.
94°
63°
23
Hist. Avg.
94°
63°
24
Hist. Avg.
94°
63°
25
Hist. Avg.
94°
63°
26
Hist. Avg.
94°
63°
27
Hist. Avg.
94°
62°
28
Hist. Avg.
93°
62°
29
Hist. Avg.
93°
62°
30
Hist. Avg.
93°
62°
31
Hist. Avg.
93°
62°
1
Hist. Avg.
93°
62°
2
Hist. Avg.
92°
62°
3
Hist. Avg.
92°
62°
4
Hist. Avg.
92°
62°
5
Hist. Avg.
92°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Vallecito
Vallecito's August 2026 forecast shows daily high temperatures ranging from 90° to 98°, with overnight lows between 53° and 60°. The average high for August is 95° with an average low of 58°. 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 Vallecito. See also: September | October | November.
