S
M
T
W
T
F
S
26
51°
39°
27
56°
43°
28
44°
35°
29
63°
32°
30
60°
38°
1
63°
35°
2
71°
34°
3
77°
46°
4
81°
44°
5
52°
44°
6
59°
40°
7
75°
39°
8
79°
47°
9
74°
45°
10
74°
43°
11
85°
53°
12
80°
54°
13
82°
44°
14
86°
60°
15
95°
50°
16
88°
54°
17
82°
55°
18
54°
43°
19
63°
41°
20
58°
43°
21
69°
44°
22
69°
55°
23
77°
48°
24
89°
49°
25
94°
60°
26
87°
58°
27
85°
58°
28
85°
61°
29
77°
62°
30
76°
61°
31
80°
55°
1
81°
52°
2
80°
54°
3
79°
55°
4
80°
55°
5
87°
60°
6
90°
59°
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 76° to 90°, with overnight lows between 52° and 62°. The average high for May is 82° with an average low of 58°. 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.
