S
M
T
W
T
F
S
30
77°
66°
31
84°
68°
1
85°
69°
2
94°
70°
3
89°
68°
4
82°
65°
5
78°
58°
6
79°
57°
7
79°
60°
8
82°
66°
9
84°
62°
10
79°
55°
11
76°
52°
12
75°
54°
13
72°
54°
14
73°
53°
15
71°
50°
16
78°
56°
17
78°
55°
18
72°
54°
19
77°
55°
20
77°
55°
21
76°
54°
22
75°
53°
23
73°
51°
24
70°
52°
25
75°
54°
26
74°
50°
27
64°
46°
28
64°
44°
29
63°
44°
30
63°
40°
1
61°
42°
2
62°
46°
3
68°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Devils Lake
Devils Lake's September 2026 forecast shows daily high temperatures ranging from 61° to 89°, with overnight lows between 40° and 68°. The average high for September is 74° 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 Devils Lake. See also: October | November | December.
