S
M
T
W
T
F
S
26
78°
61°
27
78°
60°
28
78°
58°
29
79°
63°
30
80°
64°
31
78°
58°
1
78°
64°
2
81°
65°
3
80°
59°
4
79°
58°
5
78°
57°
6
78°
58°
7
79°
59°
8
77°
58°
9
77°
62°
10
82°
61°
11
77°
58°
12
81°
63°
13
82°
64°
14
77°
64°
15
79°
63°
16
83°
56°
17
79°
56°
18
76°
57°
19
75°
61°
20
74°
56°
21
75°
55°
22
76°
60°
23
75°
61°
24
80°
62°
25
82°
61°
26
82°
54°
27
78°
53°
28
73°
53°
29
73°
54°
30
74°
56°
31
77°
59°
1
79°
60°
2
80°
58°
3
79°
54°
4
78°
59°
5
78°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bunnvale
Bunnvale's August 2026 forecast shows daily high temperatures ranging from 73° to 83°, with overnight lows between 53° and 65°. The average high for August is 78° with an average low of 59°. 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 Bunnvale. See also: September | October | November.