S
M
T
W
T
F
S
26
81°
68°
27
81°
61°
28
76°
60°
29
77°
65°
30
79°
63°
31
78°
65°
1
82°
67°
2
80°
61°
3
77°
60°
4
76°
59°
5
77°
60°
6
79°
63°
7
81°
61°
8
76°
59°
9
80°
65°
10
82°
60°
11
81°
66°
12
83°
67°
13
84°
68°
14
82°
68°
15
82°
64°
16
83°
59°
17
75°
60°
18
76°
62°
19
74°
60°
20
75°
59°
21
73°
58°
22
77°
65°
23
76°
64°
24
83°
65°
25
84°
62°
26
83°
57°
27
75°
56°
28
73°
56°
29
74°
58°
30
77°
64°
31
81°
65°
1
81°
64°
2
80°
57°
3
77°
61°
4
80°
63°
5
74°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Vineyard
Vineyard's August 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 56° and 68°. The average high for August is 79° with an average low of 62°. 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 Vineyard. See also: September | October | November.