S
M
T
W
T
F
S
26
93°
67°
27
94°
68°
28
95°
65°
29
96°
65°
30
95°
66°
31
88°
60°
1
86°
61°
2
88°
60°
3
86°
61°
4
87°
61°
5
88°
62°
6
88°
61°
7
87°
61°
8
88°
60°
9
87°
64°
10
90°
64°
11
88°
62°
12
88°
61°
13
86°
60°
14
86°
59°
15
85°
58°
16
84°
59°
17
85°
60°
18
86°
62°
19
87°
62°
20
88°
64°
21
90°
65°
22
89°
64°
23
86°
62°
24
87°
64°
25
83°
63°
26
85°
62°
27
83°
61°
28
82°
55°
29
81°
55°
30
81°
54°
31
82°
54°
1
82°
55°
2
85°
56°
3
85°
55°
4
84°
60°
5
87°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mountain View
Mountain View's August 2026 forecast shows daily high temperatures ranging from 81° to 96°, with overnight lows between 54° and 68°. The average high for August is 87° with an average low of 61°. 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 Mountain View. See also: September | October | November.