S
M
T
W
T
F
S
30
70°
48°
31
67°
47°
1
66°
49°
2
65°
48°
3
66°
46°
4
66°
50°
5
73°
55°
6
74°
56°
7
71°
52°
8
74°
46°
9
68°
56°
10
73°
52°
11
76°
45°
12
68°
52°
13
73°
54°
14
72°
43°
15
72°
39°
16
62°
39°
17
62°
41°
18
63°
46°
19
65°
47°
20
64°
49°
21
67°
50°
22
66°
49°
23
68°
49°
24
68°
50°
25
67°
49°
26
71°
50°
27
70°
38°
28
70°
34°
29
58°
35°
30
57°
39°
1
56°
36°
2
57°
37°
3
56°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Old Forge
Old Forge's September 2026 forecast shows daily high temperatures ranging from 56° to 76°, with overnight lows between 34° and 56°. The average high for September is 67° with an average low of 46°. 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 Old Forge. See also: October | November | December.