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
62°
49°
20
62°
55°
21
68°
62°
22
85°
66°
23
83°
71°
24
91°
73°
25
89°
74°
26
89°
69°
27
89°
76°
28
93°
77°
29
87°
69°
30
79°
64°
1
67°
56°
2
75°
53°
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 ° to °, with overnight lows between ° and °. The average high for April is ° with an average low of °. 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.
