S
M
T
W
T
F
S
27
90°
80°
28
90°
78°
29
89°
79°
30
89°
79°
1
92°
78°
2
89°
78°
3
89°
79°
4
88°
76°
5
89°
78°
6
89°
79°
7
91°
77°
8
88°
76°
9
92°
76°
10
89°
75°
11
92°
76°
12
91°
76°
13
91°
76°
14
90°
77°
15
87°
76°
16
86°
75°
17
87°
76°
18
85°
73°
19
85°
75°
20
86°
74°
21
84°
74°
22
83°
74°
23
83°
74°
24
84°
73°
25
83°
74°
26
83°
75°
27
84°
75°
28
85°
74°
29
85°
74°
30
84°
74°
31
84°
74°
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 83° to 92°, with overnight lows between 73° and 77°. The average high for October is 86° with an average low of 75°. 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.
