S
M
T
W
T
F
S
30
71°
49°
31
72°
48°
1
73°
47°
2
72°
45°
3
70°
41°
4
71°
47°
5
73°
47°
6
72°
46°
7
71°
47°
8
72°
49°
9
72°
47°
10
71°
46°
11
68°
45°
12
66°
37°
13
63°
38°
14
67°
42°
15
70°
44°
16
65°
40°
17
65°
43°
18
67°
41°
19
62°
39°
20
63°
38°
21
62°
41°
22
59°
40°
23
58°
39°
24
59°
39°
25
61°
38°
26
67°
40°
27
66°
36°
28
60°
38°
29
67°
33°
30
66°
28°
1
56°
28°
2
58°
29°
3
58°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lake George
Lake George's September 2026 forecast shows daily high temperatures ranging from 56° to 73°, with overnight lows between 27° and 49°. The average high for September is 66° 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 Lake George. See also: October | November | December.
