S
M
T
W
T
F
S
30
76°
52°
31
77°
44°
1
73°
42°
2
62°
41°
3
63°
43°
4
63°
45°
5
64°
43°
6
71°
52°
7
73°
47°
8
73°
41°
9
70°
47°
10
68°
41°
11
62°
45°
12
67°
43°
13
64°
37°
14
59°
45°
15
61°
49°
16
69°
44°
17
63°
41°
18
60°
48°
19
67°
40°
20
61°
34°
21
55°
41°
22
57°
47°
23
61°
35°
24
66°
36°
25
56°
39°
26
53°
42°
27
55°
42°
28
60°
45°
29
58°
43°
30
62°
36°
1
60°
33°
2
50°
35°
3
51°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Otter Falls
Otter Falls's September 2026 forecast shows daily high temperatures ranging from 50° to 77°, with overnight lows between 33° and 52°. The average high for September is 63° with an average low of 42°. 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 Otter Falls. See also: October | November | December.
