S
M
T
W
T
F
S
26
63°
51°
27
66°
51°
28
71°
46°
29
74°
48°
30
71°
53°
1
74°
52°
2
68°
52°
3
69°
53°
4
67°
53°
5
67°
54°
6
74°
55°
7
74°
56°
8
73°
55°
9
77°
57°
10
80°
57°
11
78°
55°
12
80°
56°
13
80°
57°
14
73°
52°
15
69°
53°
16
69°
52°
17
70°
50°
18
69°
53°
19
69°
49°
20
70°
52°
21
72°
54°
22
76°
54°
23
78°
57°
24
79°
57°
25
78°
56°
26
76°
55°
27
73°
55°
28
71°
54°
29
71°
54°
30
72°
53°
31
71°
54°
1
71°
53°
2
72°
53°
3
74°
54°
4
77°
56°
5
75°
54°
6
73°
53°
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 67° to 80°, with overnight lows between 49° and 57°. The average high for May is 73° with an average low of 54°. 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.