S
M
T
W
T
F
S
27
61°
50°
28
68°
46°
29
75°
50°
30
72°
54°
1
66°
54°
2
64°
52°
3
64°
52°
4
68°
46°
5
82°
52°
6
72°
55°
7
70°
52°
8
75°
55°
9
82°
54°
10
79°
55°
11
70°
54°
12
64°
54°
13
68°
54°
14
70°
50°
15
73°
50°
16
72°
54°
17
68°
54°
18
75°
50°
19
79°
54°
20
73°
54°
21
77°
52°
22
73°
52°
23
66°
52°
24
66°
54°
25
68°
48°
26
70°
54°
27
72°
52°
28
68°
55°
29
73°
52°
30
82°
57°
31
82°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cupertino
Cupertino's May 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May 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 May weather will actually feel in Cupertino. See also: June | July | August.
