S
M
T
W
T
F
S
26
89°
54°
27
87°
54°
28
88°
55°
29
89°
59°
30
90°
60°
31
90°
60°
1
89°
59°
2
90°
58°
3
90°
60°
4
89°
59°
5
89°
59°
6
90°
58°
7
90°
59°
8
89°
59°
9
90°
58°
10
90°
59°
11
89°
58°
12
90°
57°
13
89°
57°
14
90°
58°
15
90°
57°
16
89°
58°
17
90°
59°
18
86°
59°
19
89°
57°
20
88°
56°
21
87°
54°
22
85°
55°
23
85°
54°
24
86°
55°
25
85°
55°
26
84°
54°
27
Hist. Avg.
87°
56°
28
Hist. Avg.
87°
56°
29
Hist. Avg.
87°
56°
30
Hist. Avg.
87°
56°
31
Hist. Avg.
87°
56°
1
Hist. Avg.
87°
56°
2
Hist. Avg.
87°
56°
3
Hist. Avg.
87°
56°
4
Hist. Avg.
87°
56°
5
Hist. Avg.
87°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Pleasanton
Pleasanton's August 2026 forecast shows daily high temperatures ranging from 84° to 90°, with overnight lows between 54° and 60°. The average high for August is 88° with an average low of 57°. 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 Pleasanton. See also: September | October | November.
