S
M
T
W
T
F
S
30
82°
61°
31
81°
66°
1
88°
70°
2
90°
70°
3
84°
66°
4
79°
66°
5
79°
57°
6
75°
54°
7
77°
55°
8
81°
50°
9
84°
61°
10
79°
66°
11
79°
57°
12
82°
57°
13
82°
66°
14
68°
50°
15
77°
46°
16
86°
66°
17
78°
63°
18
77°
54°
19
73°
63°
20
71°
56°
21
69°
57°
22
67°
55°
23
70°
57°
24
73°
53°
25
70°
52°
26
73°
52°
27
74°
52°
28
73°
51°
29
71°
45°
30
73°
50°
1
73°
51°
2
68°
50°
3
62°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in New Bethlehem
New Bethlehem's September 2026 forecast shows daily high temperatures ranging from 62° to 86°, with overnight lows between 45° and 66°. The average high for September is 72° with an average low of 54°. 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 New Bethlehem. See also: October | November | December.
