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
77°
53°
8
78°
58°
9
81°
61°
10
84°
69°
11
81°
57°
12
80°
67°
13
80°
65°
14
78°
51°
15
75°
59°
16
73°
57°
17
78°
56°
18
76°
55°
19
70°
49°
20
68°
49°
21
66°
50°
22
68°
50°
23
69°
51°
24
72°
50°
25
64°
45°
26
65°
45°
27
69°
53°
28
73°
50°
29
66°
45°
30
67°
52°
1
68°
49°
2
64°
46°
3
67°
51°
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 64° to 81°, with overnight lows between 45° and 67°. 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.
