S
M
T
W
T
F
S
30
75°
52°
31
71°
50°
1
70°
52°
2
69°
51°
3
69°
49°
4
70°
53°
5
76°
58°
6
77°
58°
7
76°
55°
8
77°
51°
9
72°
57°
10
77°
56°
11
79°
52°
12
72°
56°
13
76°
57°
14
75°
46°
15
77°
43°
16
65°
42°
17
65°
43°
18
66°
48°
19
66°
47°
20
67°
53°
21
72°
51°
22
67°
49°
23
72°
52°
24
74°
53°
25
73°
52°
26
74°
53°
27
74°
41°
28
73°
38°
29
66°
39°
30
61°
42°
1
60°
39°
2
61°
44°
3
60°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Oneida Castle
Oneida Castle's September 2026 forecast shows daily high temperatures ranging from 60° to 79°, with overnight lows between 38° and 58°. The average high for September is 71° with an average low of 49°. 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 Oneida Castle. See also: October | November | December.
