S
M
T
W
T
F
S
30
81°
66°
31
80°
65°
1
77°
62°
2
78°
63°
3
77°
67°
4
77°
68°
5
80°
64°
6
79°
64°
7
80°
65°
8
81°
64°
9
81°
64°
10
82°
67°
11
83°
67°
12
82°
65°
13
82°
66°
14
79°
67°
15
78°
65°
16
74°
61°
17
73°
59°
18
74°
57°
19
79°
64°
20
78°
59°
21
72°
56°
22
71°
57°
23
78°
61°
24
80°
63°
25
80°
62°
26
79°
61°
27
78°
62°
28
74°
60°
29
71°
61°
30
70°
60°
1
72°
59°
2
71°
54°
3
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Jones Beach State Park
Jones Beach State Park's September 2026 forecast shows daily high temperatures ranging from 70° to 83°, with overnight lows between 48° and 68°. The average high for September is 77° with an average low of 62°. 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 Jones Beach State Park. See also: October | November | December.