S
M
T
W
T
F
S
30
78°
60°
31
78°
66°
1
78°
63°
2
69°
61°
3
83°
67°
4
82°
68°
5
78°
62°
6
73°
59°
7
78°
62°
8
80°
66°
9
82°
70°
10
84°
65°
11
76°
60°
12
78°
60°
13
81°
62°
14
84°
60°
15
80°
61°
16
76°
55°
17
77°
58°
18
76°
55°
19
75°
56°
20
74°
55°
21
76°
59°
22
70°
58°
23
70°
58°
24
71°
57°
25
72°
54°
26
75°
54°
27
71°
50°
28
71°
54°
29
76°
56°
30
76°
57°
1
75°
56°
2
75°
56°
3
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ardsley
Ardsley's September 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 50° and 70°. The average high for September is 76° with an average low of 58°. 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 Ardsley. See also: October | November | December.
