S
M
T
W
T
F
S
30
89°
73°
31
91°
74°
1
90°
76°
2
89°
75°
3
88°
76°
4
87°
74°
5
88°
74°
6
88°
73°
7
90°
74°
8
90°
73°
9
89°
74°
10
90°
74°
11
89°
75°
12
88°
74°
13
87°
74°
14
88°
73°
15
87°
72°
16
87°
73°
17
91°
74°
18
88°
74°
19
87°
72°
20
88°
72°
21
89°
73°
22
88°
72°
23
88°
73°
24
87°
72°
25
87°
72°
26
88°
72°
27
86°
72°
28
Hist. Avg.
89°
74°
29
Hist. Avg.
89°
74°
30
Hist. Avg.
89°
74°
1
Hist. Avg.
89°
73°
2
Hist. Avg.
88°
73°
3
Hist. Avg.
88°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Forest Hills
Forest Hills's September 2026 forecast shows daily high temperatures ranging from 86° to 91°, with overnight lows between 72° and 76°. The average high for September is 88° with an average low of 73°. 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 Forest Hills. See also: October | November | December.
