S
M
T
W
T
F
S
30
92°
68°
31
91°
67°
1
92°
65°
2
91°
65°
3
89°
63°
4
89°
65°
5
90°
67°
6
87°
65°
7
87°
63°
8
88°
62°
9
87°
62°
10
89°
61°
11
87°
61°
12
88°
60°
13
86°
61°
14
85°
60°
15
86°
61°
16
87°
60°
17
86°
62°
18
89°
63°
19
88°
63°
20
87°
60°
21
89°
62°
22
Hist. Avg.
88°
62°
23
Hist. Avg.
88°
62°
24
Hist. Avg.
87°
61°
25
Hist. Avg.
87°
61°
26
Hist. Avg.
87°
61°
27
Hist. Avg.
86°
60°
28
Hist. Avg.
86°
60°
29
Hist. Avg.
86°
59°
30
Hist. Avg.
86°
59°
1
Hist. Avg.
85°
58°
2
Hist. Avg.
85°
58°
3
Hist. Avg.
85°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Brooklyn
Brooklyn's September 2026 forecast shows daily high temperatures ranging from 85° to 92°, with overnight lows between 60° and 68°. The average high for September is 88° with an average low of 63°. 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. See also: October | November | December.
