S
M
T
W
T
F
S
30
77°
62°
31
79°
62°
1
77°
61°
2
71°
59°
3
71°
58°
4
72°
59°
5
74°
61°
6
77°
62°
7
79°
61°
8
79°
61°
9
78°
60°
10
78°
60°
11
75°
59°
12
78°
60°
13
78°
60°
14
73°
48°
15
66°
49°
16
68°
53°
17
69°
52°
18
67°
46°
19
68°
50°
20
68°
52°
21
74°
55°
22
75°
55°
23
74°
45°
24
66°
45°
25
68°
49°
26
72°
54°
27
72°
52°
28
68°
44°
29
66°
40°
30
61°
44°
1
61°
52°
2
68°
47°
3
69°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in West Seneca
West Seneca's September 2026 forecast shows daily high temperatures ranging from 61° to 79°, with overnight lows between 40° and 62°. The average high for September is 72° with an average low of 54°. 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 West Seneca. See also: October | November | December.
