S
M
T
W
T
F
S
29
86°
46°
30
81°
52°
31
63°
57°
1
64°
55°
2
64°
50°
3
75°
39°
4
84°
45°
5
86°
46°
6
77°
48°
7
77°
48°
8
81°
48°
9
75°
54°
10
66°
55°
11
63°
50°
12
61°
48°
13
66°
46°
14
68°
45°
15
68°
43°
16
72°
39°
17
75°
43°
18
78°
47°
19
71°
43°
20
66°
47°
21
73°
47°
22
73°
48°
23
72°
47°
24
73°
48°
25
73°
48°
26
72°
49°
27
73°
48°
28
72°
49°
29
74°
47°
30
70°
44°
1
70°
45°
2
71°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in South Santa Clara Valley
South Santa Clara Valley's April 2026 forecast shows daily high temperatures ranging from 66° to 78°, with overnight lows between 39° and 49°. The average high for April is 72° 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 April weather will actually feel in South Santa Clara Valley. See also: May | June | July.
