S
M
T
W
T
F
S
30
74°
55°
31
73°
55°
1
73°
61°
2
74°
63°
3
79°
62°
4
82°
63°
5
81°
60°
6
77°
54°
7
73°
54°
8
75°
55°
9
74°
52°
10
72°
52°
11
71°
53°
12
74°
52°
13
73°
58°
14
78°
58°
15
71°
52°
16
69°
54°
17
70°
55°
18
69°
56°
19
72°
48°
20
70°
51°
21
71°
49°
22
73°
48°
23
68°
47°
24
68°
47°
25
69°
53°
26
71°
48°
27
68°
54°
28
71°
53°
29
72°
45°
30
65°
49°
1
67°
53°
2
72°
52°
3
71°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bethel
Bethel's September 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 45° and 63°. The average high for September is 72° with an average low of 53°. 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 Bethel. See also: October | November | December.