S
M
T
W
T
F
S
27
86°
67°
28
86°
68°
29
84°
68°
30
83°
67°
1
83°
66°
2
85°
65°
3
88°
61°
4
82°
60°
5
81°
59°
6
82°
60°
7
83°
64°
8
82°
65°
9
87°
65°
10
86°
65°
11
Hist. Avg.
84°
62°
12
Hist. Avg.
84°
62°
13
Hist. Avg.
84°
61°
14
Hist. Avg.
83°
61°
15
Hist. Avg.
83°
61°
16
Hist. Avg.
83°
60°
17
Hist. Avg.
83°
60°
18
Hist. Avg.
82°
60°
19
Hist. Avg.
82°
60°
20
Hist. Avg.
82°
59°
21
Hist. Avg.
82°
59°
22
Hist. Avg.
81°
59°
23
Hist. Avg.
81°
58°
24
Hist. Avg.
81°
58°
25
Hist. Avg.
80°
58°
26
Hist. Avg.
80°
58°
27
Hist. Avg.
80°
57°
28
Hist. Avg.
80°
57°
29
Hist. Avg.
79°
57°
30
Hist. Avg.
79°
56°
31
Hist. Avg.
79°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in San Antonio
San Antonio's October 2026 forecast shows daily high temperatures ranging from 81° to 88°, with overnight lows between 59° and 68°. The average high for October is 84° with an average low of 64°. 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.