S
M
T
W
T
F
S
30
64°
40°
31
67°
40°
1
69°
35°
2
65°
32°
3
62°
33°
4
64°
34°
5
68°
38°
6
69°
41°
7
69°
37°
8
63°
34°
9
62°
33°
10
63°
37°
11
66°
40°
12
70°
33°
13
67°
36°
14
69°
40°
15
70°
40°
16
71°
38°
17
69°
36°
18
60°
34°
19
65°
33°
20
66°
36°
21
66°
37°
22
67°
37°
23
65°
36°
24
65°
37°
25
62°
35°
26
63°
36°
27
64°
35°
28
64°
35°
29
63°
36°
30
64°
36°
1
64°
34°
2
57°
28°
3
53°
26°
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 53° to 71°, with overnight lows between 26° and 41°. The average high for September is 65° 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.
