S
M
T
W
T
F
S
26
67°
34°
27
61°
37°
28
63°
42°
29
66°
33°
30
75°
37°
1
72°
49°
2
69°
48°
3
86°
53°
4
71°
53°
5
75°
47°
6
75°
46°
7
72°
47°
8
70°
46°
9
73°
45°
10
78°
50°
11
73°
46°
12
72°
46°
13
71°
47°
14
67°
44°
15
64°
46°
16
62°
44°
17
62°
42°
18
63°
47°
19
62°
47°
20
63°
43°
21
62°
44°
22
63°
43°
23
64°
43°
24
72°
48°
25
74°
49°
26
71°
47°
27
64°
44°
28
65°
43°
29
66°
48°
30
67°
50°
31
64°
47°
1
64°
44°
2
65°
44°
3
65°
45°
4
66°
43°
5
65°
44°
6
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Santa Clara
Santa Clara's May 2026 forecast shows daily high temperatures ranging from 62° to 86°, with overnight lows between 42° and 53°. The average high for May is 68° with an average low of 46°. 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 Santa Clara. See also: June | July | August.