S
M
T
W
T
F
S
26
66°
57°
27
66°
57°
28
66°
58°
29
64°
57°
30
67°
56°
31
66°
54°
1
65°
57°
2
68°
56°
3
69°
56°
4
68°
56°
5
68°
57°
6
69°
58°
7
64°
58°
8
63°
56°
9
70°
56°
10
68°
57°
11
66°
58°
12
68°
59°
13
66°
60°
14
68°
61°
15
66°
59°
16
64°
57°
17
66°
57°
18
63°
57°
19
65°
57°
20
64°
57°
21
66°
58°
22
67°
58°
23
66°
59°
24
65°
58°
25
65°
57°
26
70°
58°
27
64°
56°
28
66°
58°
29
68°
56°
30
66°
57°
31
67°
57°
1
70°
57°
2
72°
55°
3
72°
57°
4
70°
60°
5
68°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Castroville
Castroville'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 Castroville. See also: September | October | November.
