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
71°
56°
9
71°
55°
10
81°
55°
11
75°
48°
12
60°
46°
13
61°
49°
14
59°
47°
15
65°
49°
16
64°
48°
17
60°
44°
18
65°
50°
19
64°
50°
20
67°
48°
21
63°
51°
22
69°
54°
23
71°
52°
24
62°
50°
25
67°
51°
26
69°
51°
27
69°
50°
28
68°
50°
29
64°
49°
30
56°
48°
1
58°
46°
2
55°
42°
3
53°
45°
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 53° to 81°, with overnight lows between 42° and 56°. 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.
