S
M
T
W
T
F
S
27
86°
70°
28
85°
69°
29
88°
70°
30
88°
70°
1
89°
69°
2
85°
69°
3
84°
68°
4
84°
69°
5
82°
68°
6
84°
68°
7
86°
69°
8
87°
68°
9
87°
68°
10
86°
66°
11
83°
63°
12
78°
59°
13
76°
56°
14
75°
56°
15
74°
55°
16
75°
55°
17
76°
61°
18
75°
55°
19
73°
54°
20
73°
54°
21
74°
56°
22
74°
62°
23
85°
58°
24
84°
56°
25
80°
52°
26
83°
50°
27
73°
51°
28
74°
60°
29
73°
62°
30
82°
50°
31
83°
49°
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 73° to 89°, with overnight lows between 49° and 70°. The average high for October is 81° with an average low of 61°. 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.
