S
M
T
W
T
F
S
30
79°
67°
31
78°
69°
1
82°
67°
2
71°
65°
3
84°
67°
4
84°
71°
5
79°
68°
6
76°
64°
7
78°
61°
8
80°
62°
9
82°
68°
10
84°
69°
11
79°
67°
12
78°
63°
13
79°
68°
14
75°
63°
15
72°
57°
16
77°
58°
17
84°
73°
18
86°
64°
19
73°
66°
20
69°
64°
21
68°
62°
22
69°
60°
23
69°
62°
24
71°
63°
25
75°
60°
26
74°
61°
27
76°
62°
28
74°
61°
29
74°
62°
30
75°
48°
1
68°
56°
2
74°
60°
3
67°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Brooklyn Heights
Brooklyn Heights's September 2026 forecast shows daily high temperatures ranging from 67° to 86°, with overnight lows between 48° and 73°. The average high for September is 73° with an average low of 61°. 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 Brooklyn Heights. See also: October | November | December.
