S
M
T
W
T
F
S
30
77°
66°
31
84°
68°
1
85°
69°
2
94°
70°
3
93°
68°
4
79°
67°
5
75°
62°
6
78°
55°
7
76°
55°
8
82°
67°
9
79°
64°
10
75°
50°
11
77°
57°
12
81°
58°
13
78°
61°
14
73°
56°
15
74°
53°
16
73°
53°
17
75°
54°
18
75°
52°
19
72°
51°
20
71°
49°
21
74°
54°
22
67°
53°
23
68°
54°
24
72°
53°
25
76°
53°
26
75°
52°
27
73°
52°
28
75°
54°
29
76°
54°
30
76°
53°
1
75°
51°
2
71°
46°
3
61°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Manitou Beach-Devils Lake
Manitou Beach-Devils Lake's September 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 42° and 67°. The average high for September is 74° with an average low of 54°. 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 Manitou Beach-Devils Lake. See also: October | November | December.
