S
M
T
W
T
F
S
30
63°
46°
31
63°
43°
1
61°
42°
2
63°
48°
3
71°
53°
4
73°
49°
5
68°
47°
6
61°
41°
7
60°
39°
8
63°
42°
9
66°
47°
10
69°
41°
11
66°
37°
12
58°
40°
13
60°
40°
14
57°
35°
15
56°
34°
16
53°
32°
17
53°
33°
18
54°
40°
19
54°
45°
20
63°
38°
21
61°
34°
22
53°
35°
23
53°
34°
24
52°
29°
25
51°
31°
26
52°
34°
27
52°
34°
28
51°
40°
29
61°
42°
30
51°
33°
1
58°
40°
2
Hist. Avg.
55°
32°
3
Hist. Avg.
54°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Horseshoe Bay
Horseshoe Bay's September 2026 forecast shows daily high temperatures ranging from 51° to 73°, with overnight lows between 29° and 53°. The average high for September is 59° with an average low of 39°. 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 Horseshoe Bay. See also: October | November | December.
