S
M
T
W
T
F
S
28
88°
79°
29
89°
80°
30
88°
78°
1
88°
79°
2
88°
78°
3
89°
80°
4
90°
80°
5
87°
79°
6
N/A
7
87°
80°
8
87°
77°
9
88°
78°
10
88°
79°
11
87°
78°
12
86°
79°
13
86°
76°
14
87°
77°
15
86°
76°
16
88°
80°
17
89°
79°
18
90°
80°
19
87°
79°
20
86°
80°
21
87°
80°
22
87°
80°
23
88°
80°
24
86°
80°
25
86°
79°
26
85°
80°
27
87°
80°
28
87°
79°
29
86°
80°
30
85°
80°
31
85°
79°
1
86°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in San Antonio
San Antonio's July 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 76° and 80°. The average high for July is 87° with an average low of 79°. 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.