S
M
T
W
T
F
S
30
78°
55°
31
76°
47°
1
75°
44°
2
69°
45°
3
68°
50°
4
71°
55°
5
74°
50°
6
75°
44°
7
66°
45°
8
70°
48°
9
73°
50°
10
69°
52°
11
72°
51°
12
71°
51°
13
71°
49°
14
64°
42°
15
62°
41°
16
63°
41°
17
62°
49°
18
64°
41°
19
64°
51°
20
67°
49°
21
68°
41°
22
62°
39°
23
60°
39°
24
59°
38°
25
57°
37°
26
57°
40°
27
Hist. Avg.
63°
40°
28
Hist. Avg.
62°
40°
29
Hist. Avg.
62°
40°
30
Hist. Avg.
62°
39°
1
Hist. Avg.
61°
39°
2
Hist. Avg.
61°
39°
3
Hist. Avg.
60°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Otter Lake
Otter Lake's September 2026 forecast shows daily high temperatures ranging from 57° to 78°, with overnight lows between 37° and 55°. The average high for September is 67° with an average low of 46°. 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.
