S
M
T
W
T
F
S
30
69°
47°
31
70°
55°
1
72°
46°
2
72°
49°
3
70°
47°
4
69°
46°
5
69°
49°
6
68°
51°
7
67°
49°
8
73°
50°
9
76°
46°
10
73°
50°
11
74°
50°
12
73°
51°
13
74°
52°
14
75°
53°
15
74°
52°
16
74°
52°
17
75°
44°
18
73°
42°
19
61°
40°
20
62°
42°
21
63°
42°
22
Hist. Avg.
66°
46°
23
Hist. Avg.
66°
46°
24
Hist. Avg.
65°
45°
25
Hist. Avg.
65°
44°
26
Hist. Avg.
64°
44°
27
Hist. Avg.
64°
44°
28
Hist. Avg.
63°
43°
29
Hist. Avg.
63°
43°
30
Hist. Avg.
62°
42°
1
Hist. Avg.
62°
42°
2
Hist. Avg.
61°
41°
3
Hist. Avg.
61°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Devils Lake
Devils Lake's September 2026 forecast shows daily high temperatures ranging from 61° to 76°, with overnight lows between 40° and 55°. The average high for September is 71° with an average low of 48°. 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.
