S
M
T
W
T
F
S
30
74°
53°
31
75°
52°
1
74°
51°
2
73°
50°
3
75°
50°
4
75°
51°
5
76°
56°
6
74°
52°
7
73°
53°
8
74°
56°
9
74°
49°
10
72°
48°
11
73°
50°
12
76°
52°
13
73°
48°
14
70°
54°
15
77°
56°
16
79°
56°
17
77°
55°
18
77°
45°
19
72°
45°
20
68°
46°
21
67°
47°
22
70°
52°
23
74°
53°
24
72°
51°
25
73°
42°
26
70°
41°
27
65°
41°
28
64°
42°
29
64°
42°
30
64°
40°
1
Hist. Avg.
66°
41°
2
Hist. Avg.
66°
41°
3
Hist. Avg.
66°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Devils Lake State Park
Devils Lake State Park's September 2026 forecast shows daily high temperatures ranging from 64° to 79°, with overnight lows between 40° and 56°. The average high for September is 72° 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 State Park. See also: October | November | December.
