S
M
T
W
T
F
S
30
80°
58°
31
75°
54°
1
73°
54°
2
72°
53°
3
72°
53°
4
72°
54°
5
74°
60°
6
73°
59°
7
75°
60°
8
79°
59°
9
80°
58°
10
76°
59°
11
79°
59°
12
80°
58°
13
78°
59°
14
75°
55°
15
78°
48°
16
71°
47°
17
69°
47°
18
69°
48°
19
70°
52°
20
69°
55°
21
72°
54°
22
68°
54°
23
74°
55°
24
75°
54°
25
75°
55°
26
76°
55°
27
76°
51°
28
74°
43°
29
73°
43°
30
64°
48°
1
63°
45°
2
64°
49°
3
63°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Nyack
Nyack's September 2026 forecast shows daily high temperatures ranging from 63° to 80°, with overnight lows between 43° and 60°. The average high for September is 73° with an average low of 53°. 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 Nyack. See also: October | November | December.
