S
M
T
W
T
F
S
30
77°
65°
31
80°
59°
1
77°
59°
2
79°
54°
3
72°
60°
4
80°
53°
5
82°
65°
6
80°
65°
7
74°
65°
8
73°
61°
9
72°
58°
10
79°
60°
11
69°
47°
12
61°
44°
13
60°
51°
14
62°
47°
15
62°
46°
16
64°
48°
17
67°
51°
18
70°
50°
19
66°
51°
20
67°
49°
21
69°
52°
22
64°
48°
23
65°
49°
24
66°
50°
25
72°
51°
26
67°
51°
27
70°
53°
28
70°
49°
29
64°
48°
30
67°
48°
1
59°
47°
2
62°
47°
3
55°
46°
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 55° to 72°, with overnight lows between 44° and 53°. The average high for September is 65° 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 Devils Lake. See also: October | November | December.
