S
M
T
W
T
F
S
30
90°
75°
31
88°
74°
1
87°
76°
2
87°
74°
3
88°
73°
4
88°
73°
5
89°
75°
6
90°
74°
7
91°
73°
8
90°
74°
9
91°
74°
10
91°
75°
11
89°
74°
12
91°
73°
13
90°
74°
14
90°
75°
15
88°
75°
16
89°
74°
17
88°
73°
18
87°
72°
19
86°
73°
20
88°
74°
21
86°
72°
22
86°
73°
23
87°
72°
24
88°
71°
25
87°
69°
26
88°
70°
27
86°
70°
28
87°
71°
29
87°
71°
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 69° 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.
