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°
77°
9
96°
73°
10
94°
73°
11
90°
75°
12
96°
76°
13
96°
77°
14
86°
74°
15
80°
74°
16
87°
77°
17
94°
77°
18
96°
78°
19
97°
77°
20
100°
75°
21
100°
74°
22
102°
75°
23
99°
79°
24
96°
76°
25
97°
76°
26
97°
76°
27
100°
75°
28
99°
76°
29
100°
78°
30
102°
77°
31
100°
77°
1
102°
76°
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 ° to °, with overnight lows between ° and °. The average high for July 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 July weather will actually feel in San Antonio. See also: August | September | October.