S
M
T
W
T
F
S
30
80°
60°
31
81°
51°
1
78°
49°
2
75°
50°
3
74°
56°
4
76°
58°
5
81°
49°
6
76°
48°
7
73°
48°
8
73°
56°
9
75°
56°
10
77°
52°
11
72°
52°
12
70°
51°
13
72°
46°
14
70°
46°
15
70°
50°
16
69°
54°
17
70°
54°
18
77°
55°
19
78°
51°
20
76°
52°
21
75°
49°
22
70°
47°
23
66°
45°
24
67°
42°
25
67°
43°
26
67°
43°
27
74°
52°
28
65°
51°
29
74°
44°
30
Hist. Avg.
67°
41°
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
*Temporarily Unavailable
September Weather in Devils Lake State Park
Devils Lake State Park's September 2026 forecast shows daily high temperatures ranging from 65° to 81°, with overnight lows between 42° and 60°. The average high for September is 73° with an average low of 50°. 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.
