S
M
T
W
T
F
S
27
98°
71°
28
97°
75°
29
99°
76°
30
97°
79°
1
90°
73°
2
80°
72°
3
82°
74°
4
82°
74°
5
89°
73°
6
90°
69°
7
91°
63°
8
92°
64°
9
92°
67°
10
92°
62°
11
92°
68°
12
93°
73°
13
95°
78°
14
95°
77°
15
91°
74°
16
76°
58°
17
70°
52°
18
73°
47°
19
80°
53°
20
84°
59°
21
85°
54°
22
87°
62°
23
85°
59°
24
85°
62°
25
82°
66°
26
81°
67°
27
75°
66°
28
80°
70°
29
76°
66°
30
74°
66°
31
81°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in San Antonio
San Antonio's October 2026 forecast shows daily high temperatures ranging from 74° to 81°, with overnight lows between 66° and 70°. The average high for October is 78° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in San Antonio. See also: November | December | January.
