S
M
T
W
T
F
S
30
76°
52°
31
75°
53°
1
75°
59°
2
76°
61°
3
79°
60°
4
83°
61°
5
83°
58°
6
79°
52°
7
76°
52°
8
76°
51°
9
75°
50°
10
73°
50°
11
74°
51°
12
73°
50°
13
76°
56°
14
79°
56°
15
75°
53°
16
73°
51°
17
72°
52°
18
71°
55°
19
75°
47°
20
72°
49°
21
72°
47°
22
75°
46°
23
70°
45°
24
69°
45°
25
69°
51°
26
71°
45°
27
70°
51°
28
71°
51°
29
71°
43°
30
67°
46°
1
68°
51°
2
73°
49°
3
72°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mount Bethel
Mount Bethel's September 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 43° and 61°. The average high for September is 74° with an average low of 51°. 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 Mount Bethel. See also: October | November | December.
