S
M
T
W
T
F
S
30
70°
62°
31
82°
66°
1
88°
56°
2
83°
56°
3
82°
54°
4
73°
62°
5
81°
55°
6
83°
54°
7
79°
57°
8
72°
59°
9
78°
55°
10
73°
47°
11
80°
48°
12
71°
49°
13
64°
36°
14
64°
31°
15
68°
41°
16
70°
40°
17
68°
53°
18
59°
50°
19
58°
51°
20
63°
41°
21
60°
33°
22
63°
33°
23
63°
39°
24
64°
41°
25
67°
42°
26
67°
45°
27
67°
44°
28
64°
45°
29
62°
43°
30
64°
41°
1
65°
43°
2
60°
38°
3
58°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Three Lakes
Three Lakes's September 2026 forecast shows daily high temperatures ranging from 58° to 67°, with overnight lows between 33° and 45°. The average high for September is 63° with an average low of 41°. 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 Three Lakes. See also: October | November | December.
