S
M
T
W
T
F
S
30
84°
60°
31
86°
61°
1
87°
61°
2
88°
62°
3
83°
64°
4
88°
63°
5
87°
64°
6
87°
63°
7
86°
58°
8
82°
63°
9
86°
63°
10
86°
62°
11
82°
63°
12
86°
62°
13
86°
56°
14
80°
55°
15
79°
55°
16
79°
56°
17
80°
59°
18
84°
61°
19
84°
59°
20
83°
60°
21
78°
59°
22
83°
60°
23
82°
57°
24
83°
52°
25
76°
51°
26
75°
50°
27
Hist. Avg.
79°
55°
28
Hist. Avg.
78°
54°
29
Hist. Avg.
78°
54°
30
Hist. Avg.
78°
53°
1
Hist. Avg.
77°
53°
2
Hist. Avg.
77°
53°
3
Hist. Avg.
76°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Bethpage
Bethpage's September 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 50° and 64°. The average high for September is 83° with an average low of 59°. 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 Bethpage. See also: October | November | December.
