S
M
T
W
T
F
S
26
83°
55°
27
83°
55°
28
84°
56°
29
84°
56°
30
83°
55°
31
83°
55°
1
88°
56°
2
89°
57°
3
85°
56°
4
83°
55°
5
83°
55°
6
84°
56°
7
83°
56°
8
83°
57°
9
84°
56°
10
89°
55°
11
85°
55°
12
89°
54°
13
88°
56°
14
90°
58°
15
89°
59°
16
90°
59°
17
90°
60°
18
91°
60°
19
91°
59°
20
90°
60°
21
90°
60°
22
91°
59°
23
90°
59°
24
90°
58°
25
89°
59°
26
90°
60°
27
90°
59°
28
89°
59°
29
90°
57°
30
88°
56°
31
87°
54°
1
86°
54°
2
85°
53°
3
84°
52°
4
83°
51°
5
83°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Pleasanton
Pleasanton's August 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 51° and 60°. The average high for August is 87° 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.
