S
M
T
W
T
F
S
31
93°
79°
1
81°
77°
2
85°
75°
3
84°
74°
4
85°
75°
5
80°
76°
6
86°
76°
7
88°
78°
8
89°
79°
9
89°
77°
10
89°
78°
11
91°
78°
12
90°
79°
13
90°
77°
14
89°
77°
15
90°
78°
16
90°
77°
17
94°
78°
18
96°
79°
19
92°
78°
20
94°
80°
21
92°
81°
22
93°
78°
23
93°
82°
24
84°
77°
25
85°
77°
26
88°
77°
27
87°
75°
28
88°
75°
29
89°
76°
30
82°
78°
1
86°
79°
2
89°
78°
3
89°
77°
4
95°
78°
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 ° to °, with overnight lows between ° and °. The average high for June 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 June weather will actually feel in San Antonio. See also: July | August | September.