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
81°
70°
12
77°
70°
13
88°
72°
14
86°
70°
15
86°
68°
16
88°
69°
17
86°
68°
18
85°
55°
19
72°
57°
20
78°
61°
21
85°
68°
22
86°
66°
23
88°
67°
24
82°
59°
25
85°
64°
26
84°
63°
27
80°
64°
28
82°
64°
29
82°
65°
30
84°
65°
1
85°
66°
2
86°
66°
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 72° to 88°, with overnight lows between 55° and 72°. The average high for April is 83° with an average low of 65°. 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.
