S
M
T
W
T
F
S
30
96°
74°
31
96°
74°
1
95°
73°
2
95°
74°
3
94°
73°
4
94°
73°
5
93°
72°
6
94°
73°
7
94°
73°
8
93°
72°
9
94°
73°
10
94°
73°
11
95°
72°
12
94°
72°
13
94°
71°
14
93°
71°
15
94°
70°
16
93°
71°
17
93°
71°
18
92°
70°
19
92°
71°
20
91°
69°
21
88°
63°
22
87°
61°
23
86°
61°
24
90°
65°
25
92°
67°
26
91°
66°
27
91°
66°
28
83°
67°
29
83°
67°
30
85°
66°
1
87°
66°
2
82°
65°
3
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bexar
Bexar's September 2026 forecast shows daily high temperatures ranging from 82° to 96°, with overnight lows between 61° and 74°. The average high for September is 91° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Bexar. See also: October | November | December.
