S
M
T
W
T
F
S
30
95°
68°
31
96°
67°
1
96°
67°
2
97°
68°
3
94°
67°
4
94°
69°
5
95°
70°
6
93°
70°
7
92°
69°
8
93°
70°
9
94°
71°
10
93°
70°
11
95°
69°
12
96°
69°
13
96°
70°
14
95°
69°
15
94°
69°
16
89°
68°
17
87°
68°
18
87°
67°
19
88°
68°
20
88°
67°
21
87°
66°
22
87°
66°
23
86°
66°
24
87°
65°
25
89°
65°
26
90°
63°
27
91°
64°
28
89°
63°
29
87°
64°
30
88°
64°
1
87°
62°
2
90°
63°
3
83°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lakeway
Lakeway's September 2026 forecast shows daily high temperatures ranging from 83° to 97°, with overnight lows between 58° and 71°. The average high for September is 91° with an average low of 67°. 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 Lakeway. See also: October | November | December.
