S
M
T
W
T
F
S
26
90°
69°
27
90°
69°
28
91°
68°
29
91°
69°
30
90°
69°
31
91°
70°
1
92°
70°
2
91°
69°
3
90°
68°
4
90°
69°
5
91°
68°
6
89°
67°
7
88°
68°
8
90°
67°
9
88°
65°
10
85°
67°
11
89°
65°
12
91°
64°
13
88°
66°
14
89°
67°
15
91°
64°
16
91°
58°
17
84°
55°
18
80°
53°
19
77°
54°
20
78°
54°
21
79°
55°
22
79°
55°
23
78°
58°
24
83°
59°
25
87°
59°
26
82°
54°
27
77°
54°
28
80°
60°
29
85°
62°
30
87°
60°
31
88°
52°
1
85°
55°
2
75°
61°
3
84°
60°
4
86°
53°
5
86°
50°
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 75° to 92°, with overnight lows between 50° and 70°. The average high for August is 86° 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 Pleasanton. See also: September | October | November.
