S
M
T
W
T
F
S
30
74°
49°
31
74°
57°
1
76°
58°
2
78°
59°
3
77°
51°
4
76°
47°
5
73°
48°
6
71°
47°
7
72°
52°
8
76°
50°
9
77°
56°
10
79°
48°
11
73°
47°
12
71°
54°
13
71°
46°
14
72°
46°
15
68°
51°
16
70°
50°
17
69°
51°
18
73°
44°
19
69°
44°
20
69°
43°
21
71°
43°
22
67°
48°
23
69°
50°
24
74°
52°
25
75°
51°
26
73°
52°
27
73°
52°
28
75°
48°
29
72°
44°
30
67°
51°
1
71°
49°
2
73°
40°
3
71°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Otter Lake
Otter Lake's September 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 39° and 59°. The average high for September is 73° with an average low of 49°. 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 Lake. See also: October | November | December.
