S
M
T
W
T
F
S
28
95°
72°
29
96°
75°
30
N/A
1
91°
71°
2
93°
72°
3
91°
73°
4
89°
72°
5
90°
73°
6
91°
72°
7
91°
74°
8
95°
73°
9
91°
75°
10
91°
74°
11
92°
73°
12
91°
74°
13
92°
75°
14
93°
73°
15
91°
74°
16
90°
75°
17
87°
75°
18
87°
75°
19
88°
74°
20
87°
73°
21
87°
74°
22
88°
75°
23
88°
75°
24
89°
74°
25
87°
75°
26
87°
75°
27
88°
74°
28
87°
75°
29
86°
74°
30
88°
75°
31
90°
75°
1
91°
74°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Antonio
San Antonio's July 2026 forecast shows daily high temperatures ranging from 86° to 95°, with overnight lows between 71° and 75°. The average high for July is 90° with an average low of 74°. 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. See also: August | September | October.