S
M
T
W
T
F
S
30
76°
60°
31
81°
64°
1
77°
55°
2
74°
55°
3
72°
54°
4
73°
55°
5
75°
56°
6
70°
52°
7
76°
58°
8
75°
56°
9
73°
59°
10
75°
57°
11
71°
55°
12
73°
57°
13
76°
54°
14
71°
51°
15
72°
51°
16
74°
55°
17
71°
56°
18
76°
50°
19
75°
48°
20
67°
47°
21
70°
54°
22
75°
55°
23
75°
52°
24
74°
48°
25
66°
49°
26
65°
46°
27
65°
45°
28
64°
46°
29
65°
45°
30
65°
46°
1
66°
46°
2
67°
44°
3
61°
43°
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 61° to 81°, with overnight lows between 43° and 64°. The average high for September is 71° with an average low of 52°. 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.
