S
M
T
W
T
F
S
26
76°
60°
27
76°
58°
28
81°
59°
29
75°
58°
30
83°
59°
31
89°
55°
1
85°
56°
2
97°
58°
3
98°
58°
4
90°
60°
5
80°
59°
6
85°
57°
7
86°
58°
8
76°
58°
9
91°
59°
10
86°
58°
11
84°
57°
12
79°
57°
13
76°
59°
14
73°
60°
15
69°
58°
16
88°
59°
17
85°
56°
18
87°
57°
19
91°
58°
20
89°
59°
21
84°
58°
22
83°
57°
23
84°
58°
24
86°
59°
25
85°
57°
26
88°
57°
27
87°
56°
28
88°
55°
29
87°
56°
30
83°
54°
31
83°
58°
1
82°
57°
2
83°
58°
3
87°
59°
4
88°
59°
5
85°
58°
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 82° to 91°, with overnight lows between 54° and 59°. The average high for August is 86° 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.
