S
M
T
W
T
F
S
29
85°
55°
30
89°
63°
31
90°
67°
1
92°
71°
2
90°
71°
3
87°
73°
4
84°
62°
5
66°
54°
6
76°
53°
7
79°
48°
8
82°
54°
9
82°
66°
10
83°
67°
11
86°
69°
12
83°
71°
13
92°
72°
14
90°
71°
15
88°
71°
16
89°
67°
17
91°
67°
18
75°
50°
19
65°
55°
20
60°
58°
21
67°
64°
22
83°
68°
23
85°
71°
24
84°
70°
25
87°
69°
26
85°
69°
27
84°
67°
28
82°
67°
29
80°
58°
30
79°
62°
1
80°
62°
2
83°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in San Antonio
San Antonio's April 2026 forecast shows daily high temperatures ranging from 60° to 87°, with overnight lows between 55° and 71°. The average high for April is 79° with an average low of 64°. 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. See also: May | June | July.
