S
M
T
W
T
F
S
31
58°
45°
1
84°
49°
2
76°
51°
3
74°
47°
4
81°
44°
5
85°
47°
6
83°
47°
7
87°
51°
8
88°
59°
9
86°
56°
10
90°
49°
11
86°
54°
12
87°
54°
13
86°
58°
14
63°
51°
15
81°
49°
16
90°
44°
17
94°
58°
18
82°
56°
19
84°
56°
20
92°
57°
21
90°
54°
22
81°
54°
23
84°
53°
24
87°
57°
25
87°
58°
26
88°
59°
27
87°
57°
28
87°
56°
29
88°
55°
30
86°
56°
1
85°
57°
2
95°
60°
3
85°
56°
4
86°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Antonio
San Antonio's June 2026 forecast shows daily high temperatures ranging from 81° to 95°, with overnight lows between 53° and 60°. The average high for June is 87° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in San Antonio. See also: July | August | September.