S
M
T
W
T
F
S
29
88°
66°
30
79°
59°
31
68°
59°
1
70°
55°
2
66°
54°
3
79°
52°
4
84°
61°
5
84°
61°
6
77°
59°
7
77°
57°
8
79°
59°
9
75°
59°
10
73°
57°
11
70°
55°
12
63°
50°
13
61°
50°
14
72°
48°
15
75°
54°
16
72°
55°
17
75°
52°
18
81°
55°
19
81°
59°
20
70°
52°
21
64°
47°
22
66°
49°
23
71°
52°
24
69°
51°
25
62°
50°
26
65°
49°
27
69°
50°
28
73°
51°
29
72°
53°
30
76°
52°
1
74°
52°
2
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in San Antonio Heights
San Antonio Heights's April 2026 forecast shows daily high temperatures ranging from 62° to 76°, with overnight lows between 47° and 53°. The average high for April is 70° with an average low of 51°. 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 San Antonio Heights. See also: May | June | July.