S
M
T
W
T
F
S
28
94°
78°
29
95°
77°
30
95°
76°
1
96°
75°
2
96°
75°
3
95°
76°
4
97°
77°
5
98°
76°
6
93°
72°
7
87°
72°
8
88°
73°
9
89°
75°
10
90°
76°
11
90°
76°
12
91°
75°
13
90°
75°
14
91°
74°
15
93°
76°
16
94°
76°
17
95°
75°
18
94°
76°
19
95°
77°
20
95°
77°
21
94°
76°
22
96°
77°
23
96°
77°
24
95°
76°
25
96°
77°
26
97°
77°
27
97°
76°
28
96°
77°
29
97°
77°
30
97°
78°
31
96°
78°
1
97°
77°
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 87° to 98°, with overnight lows between 72° and 78°. The average high for July is 94° with an average low of 76°. 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.