S
M
T
W
T
F
S
28
84°
49°
29
82°
41°
30
82°
36°
1
83°
35°
2
84°
35°
3
86°
34°
4
85°
34°
5
87°
45°
6
86°
48°
7
88°
48°
8
87°
47°
9
89°
48°
10
89°
48°
11
91°
51°
12
88°
52°
13
87°
51°
14
83°
52°
15
82°
54°
16
84°
53°
17
79°
54°
18
82°
53°
19
80°
54°
20
77°
54°
21
78°
55°
22
80°
49°
23
82°
53°
24
76°
52°
25
77°
53°
26
75°
53°
27
76°
50°
28
78°
53°
29
79°
52°
30
81°
53°
31
82°
52°
1
81°
53°
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 75° to 91°, with overnight lows between 48° and 55°. The average high for July is 82° with an average low of 52°. 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.