S
M
T
W
T
F
S
29
82°
64°
30
83°
60°
31
86°
61°
1
87°
58°
2
86°
57°
3
88°
65°
4
89°
63°
5
90°
60°
6
87°
61°
7
71°
61°
8
78°
61°
9
81°
64°
10
83°
59°
11
83°
56°
12
84°
53°
13
85°
52°
14
87°
55°
15
85°
58°
16
88°
52°
17
90°
56°
18
92°
60°
19
87°
64°
20
83°
59°
21
84°
50°
22
82°
51°
23
83°
52°
24
88°
57°
25
92°
59°
26
88°
62°
27
91°
63°
28
91°
66°
29
92°
60°
30
91°
67°
1
92°
70°
2
89°
63°
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.
