S
M
T
W
T
F
S
28
94°
77°
29
95°
78°
30
94°
76°
1
95°
77°
2
95°
76°
3
96°
76°
4
96°
77°
5
97°
77°
6
97°
77°
7
97°
77°
8
98°
75°
9
98°
76°
10
91°
76°
11
93°
77°
12
95°
76°
13
95°
78°
14
93°
77°
15
92°
74°
16
93°
77°
17
99°
75°
18
100°
75°
19
102°
76°
20
100°
76°
21
93°
75°
22
99°
78°
23
98°
79°
24
98°
78°
25
99°
78°
26
99°
79°
27
98°
78°
28
99°
78°
29
99°
77°
30
98°
79°
31
100°
79°
1
100°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Antonio South
San Antonio South's July 2026 forecast shows daily high temperatures ranging from 91° to 102°, with overnight lows between 74° and 79°. The average high for July is 97° with an average low of 77°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in San Antonio South. See also: August | September | October.
