S
M
T
W
T
F
S
30
66°
54°
31
75°
53°
1
72°
55°
2
71°
62°
3
74°
57°
4
70°
51°
5
64°
44°
6
67°
45°
7
68°
50°
8
66°
48°
9
69°
57°
10
66°
53°
11
62°
49°
12
64°
50°
13
62°
50°
14
62°
51°
15
63°
47°
16
67°
50°
17
67°
45°
18
62°
43°
19
67°
47°
20
69°
49°
21
69°
49°
22
68°
48°
23
67°
46°
24
61°
43°
25
65°
47°
26
66°
48°
27
64°
47°
28
56°
43°
29
54°
41°
30
58°
41°
1
54°
36°
2
54°
39°
3
55°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake Placid
Lake Placid's September 2026 forecast shows daily high temperatures ranging from 54° to 74°, with overnight lows between 36° and 62°. The average high for September is 64° with an average low of 47°. 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 Lake Placid. See also: October | November | December.