S
M
T
W
T
F
S
30
70°
53°
31
72°
54°
1
69°
48°
2
75°
43°
3
68°
47°
4
73°
51°
5
72°
51°
6
66°
52°
7
65°
51°
8
71°
42°
9
70°
48°
10
72°
52°
11
72°
48°
12
69°
41°
13
65°
44°
14
65°
52°
15
69°
43°
16
70°
44°
17
62°
42°
18
56°
39°
19
57°
38°
20
57°
40°
21
59°
41°
22
56°
37°
23
57°
35°
24
54°
36°
25
55°
37°
26
54°
38°
27
55°
37°
28
54°
45°
29
54°
34°
30
54°
40°
1
53°
35°
2
Hist. Avg.
54°
38°
3
Hist. Avg.
54°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Gull Lake
Gull Lake's September 2026 forecast shows daily high temperatures ranging from 53° to 75°, with overnight lows between 34° and 54°. The average high for September is 63° with an average low of 44°. 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 Gull Lake. See also: October | November | December.
