S
M
T
W
T
F
S
26
80°
60°
27
82°
48°
28
85°
53°
29
85°
57°
30
86°
59°
1
86°
54°
2
80°
60°
3
87°
63°
4
86°
60°
5
78°
56°
6
80°
48°
7
86°
50°
8
94°
58°
9
98°
62°
10
99°
63°
11
97°
69°
12
102°
69°
13
99°
68°
14
96°
65°
15
93°
62°
16
94°
56°
17
91°
59°
18
90°
59°
19
90°
57°
20
88°
61°
21
90°
57°
22
91°
57°
23
92°
64°
24
89°
55°
25
80°
46°
26
81°
49°
27
87°
55°
28
87°
49°
29
85°
45°
30
84°
48°
31
86°
48°
1
88°
52°
2
89°
55°
3
87°
52°
4
87°
51°
5
86°
52°
6
89°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Pleasanton
Pleasanton's May 2026 forecast shows daily high temperatures ranging from 80° to 89°, with overnight lows between 45° and 55°. The average high for May is 86° with an average low of 50°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Pleasanton. See also: June | July | August.
