S
M
T
W
T
F
S
30
78°
52°
31
81°
59°
1
80°
59°
2
76°
54°
3
74°
50°
4
73°
50°
5
73°
51°
6
74°
50°
7
77°
57°
8
80°
52°
9
74°
48°
10
74°
53°
11
72°
44°
12
70°
47°
13
70°
48°
14
69°
47°
15
68°
46°
16
70°
45°
17
69°
47°
18
70°
44°
19
69°
43°
20
67°
42°
21
66°
42°
22
68°
43°
23
72°
45°
24
74°
48°
25
76°
51°
26
76°
50°
27
66°
50°
28
69°
49°
29
68°
41°
30
67°
41°
1
65°
48°
2
73°
40°
3
73°
39°
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 65° to 81°, with overnight lows between 39° and 59°. The average high for September is 72° with an average low of 48°. 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.
