S
M
T
W
T
F
S
30
66°
43°
31
72°
39°
1
66°
41°
2
72°
43°
3
72°
42°
4
71°
37°
5
68°
36°
6
66°
37°
7
68°
41°
8
70°
40°
9
66°
41°
10
63°
38°
11
65°
36°
12
62°
38°
13
68°
40°
14
68°
34°
15
62°
32°
16
61°
35°
17
60°
37°
18
60°
32°
19
61°
30°
20
58°
30°
21
59°
31°
22
60°
32°
23
65°
36°
24
65°
36°
25
66°
38°
26
66°
37°
27
65°
37°
28
64°
26°
29
56°
28°
30
55°
36°
1
57°
34°
2
62°
37°
3
64°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Twin Lakes
Twin Lakes's September 2026 forecast shows daily high temperatures ranging from 55° to 72°, with overnight lows between 26° and 43°. The average high for September is 64° with an average low of 36°. 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 Twin Lakes. See also: October | November | December.
