S
M
T
W
T
F
S
30
75°
56°
31
78°
59°
1
78°
51°
2
74°
50°
3
70°
50°
4
69°
51°
5
69°
49°
6
72°
57°
7
77°
59°
8
80°
55°
9
76°
50°
10
71°
49°
11
71°
57°
12
73°
49°
13
75°
48°
14
69°
46°
15
68°
49°
16
70°
55°
17
73°
46°
18
71°
47°
19
68°
48°
20
71°
45°
21
67°
52°
22
66°
54°
23
76°
54°
24
76°
53°
25
74°
53°
26
74°
52°
27
75°
52°
28
74°
51°
29
72°
51°
30
72°
52°
1
74°
42°
2
74°
39°
3
65°
40°
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 65° to 80°, with overnight lows between 39° and 59°. The average high for September is 72° with an average low of 51°. 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.
