S
M
T
W
T
F
S
30
78°
56°
31
70°
64°
1
86°
66°
2
82°
66°
3
84°
65°
4
79°
61°
5
75°
54°
6
74°
51°
7
75°
44°
8
78°
46°
9
82°
52°
10
81°
59°
11
74°
48°
12
76°
46°
13
83°
62°
14
68°
42°
15
73°
41°
16
75°
59°
17
77°
66°
18
73°
54°
19
71°
57°
20
69°
49°
21
64°
46°
22
62°
43°
23
63°
43°
24
62°
44°
25
67°
46°
26
68°
48°
27
68°
44°
28
69°
47°
29
71°
46°
30
71°
50°
1
69°
48°
2
70°
43°
3
62°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Watkins Glen
Watkins Glen's September 2026 forecast shows daily high temperatures ranging from 62° to 71°, with overnight lows between 43° and 57°. The average high for September is 67° 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 Watkins Glen. See also: October | November | December.
