S
M
T
W
T
F
S
30
89°
52°
31
88°
42°
1
76°
40°
2
75°
41°
3
84°
47°
4
85°
48°
5
86°
40°
6
79°
38°
7
72°
38°
8
71°
43°
9
69°
44°
10
71°
47°
11
71°
36°
12
70°
39°
13
70°
46°
14
77°
43°
15
70°
41°
16
69°
36°
17
68°
35°
18
70°
39°
19
74°
37°
20
74°
38°
21
73°
36°
22
68°
32°
23
65°
34°
24
66°
42°
25
69°
34°
26
65°
32°
27
64°
37°
28
65°
34°
29
64°
40°
30
68°
36°
1
63°
33°
2
65°
36°
3
69°
35°
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 63° to 89°, with overnight lows between 32° and 52°. The average high for September is 72° 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 Twin Lakes. See also: October | November | December.
