S
M
T
W
T
F
S
27
96°
71°
28
96°
74°
29
97°
75°
30
95°
78°
1
84°
72°
2
80°
71°
3
80°
73°
4
80°
73°
5
87°
71°
6
89°
66°
7
90°
62°
8
90°
63°
9
90°
67°
10
89°
60°
11
90°
70°
12
90°
73°
13
94°
78°
14
91°
73°
15
90°
69°
16
80°
57°
17
75°
53°
18
79°
61°
19
80°
65°
20
83°
70°
21
87°
69°
22
87°
68°
23
85°
66°
24
83°
62°
25
84°
63°
26
69°
51°
27
79°
56°
28
78°
57°
29
78°
59°
30
79°
60°
31
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in San Antonio International Airport
San Antonio International Airport's October 2026 forecast shows daily high temperatures ranging from 69° to 94°, with overnight lows between 51° and 78°. The average high for October is 82° with an average low of 63°. 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 International Airport. See also: November | December | January.
