S
M
T
W
T
F
S
26
97°
75°
27
100°
74°
28
99°
74°
29
100°
76°
30
101°
76°
31
100°
75°
1
101°
75°
2
101°
79°
3
100°
72°
4
100°
76°
5
99°
77°
6
101°
77°
7
100°
76°
8
98°
73°
9
99°
74°
10
98°
74°
11
100°
77°
12
102°
76°
13
101°
76°
14
99°
77°
15
101°
76°
16
100°
74°
17
102°
71°
18
101°
73°
19
101°
73°
20
103°
76°
21
103°
75°
22
104°
74°
23
104°
71°
24
103°
72°
25
102°
71°
26
102°
76°
27
104°
72°
28
99°
74°
29
98°
76°
30
99°
75°
31
100°
76°
1
100°
76°
2
102°
76°
3
103°
78°
4
98°
77°
5
99°
78°
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 ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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.
