S
M
T
W
T
F
S
26
74°
57°
27
77°
53°
28
59°
48°
29
63°
44°
30
65°
41°
1
65°
38°
2
66°
44°
3
82°
56°
4
80°
56°
5
58°
46°
6
54°
40°
7
64°
46°
8
71°
48°
9
76°
54°
10
70°
53°
11
75°
52°
12
79°
58°
13
79°
57°
14
80°
54°
15
75°
53°
16
77°
59°
17
72°
58°
18
77°
59°
19
77°
54°
20
72°
55°
21
74°
51°
22
70°
50°
23
71°
52°
24
69°
53°
25
70°
53°
26
71°
52°
27
73°
54°
28
73°
58°
29
74°
59°
30
76°
63°
31
75°
59°
1
75°
55°
2
76°
56°
3
77°
64°
4
78°
64°
5
78°
65°
6
79°
65°
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 54° to 82°, with overnight lows between 40° and 65°. The average high for May is 73° with an average low of 55°. 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.
