S
M
T
W
T
F
S
26
63°
51°
27
67°
47°
28
74°
48°
29
74°
48°
30
75°
49°
1
71°
53°
2
64°
52°
3
67°
51°
4
64°
52°
5
66°
54°
6
74°
53°
7
78°
52°
8
75°
51°
9
82°
53°
10
84°
55°
11
90°
55°
12
80°
52°
13
79°
51°
14
80°
52°
15
75°
50°
16
78°
53°
17
79°
54°
18
78°
53°
19
79°
54°
20
80°
54°
21
79°
52°
22
78°
52°
23
79°
54°
24
80°
54°
25
81°
53°
26
80°
53°
27
74°
52°
28
73°
52°
29
74°
53°
30
75°
53°
31
76°
55°
1
78°
55°
2
81°
54°
3
79°
55°
4
75°
54°
5
76°
53°
6
74°
52°
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 64° to 90°, with overnight lows between 50° and 55°. The average high for May is 77° with an average low of 53°. 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.
