S
M
T
W
T
F
S
30
79°
64°
31
90°
66°
1
86°
59°
2
88°
68°
3
86°
68°
4
88°
72°
5
86°
70°
6
86°
70°
7
86°
68°
8
82°
68°
9
82°
61°
10
81°
52°
11
86°
63°
12
77°
55°
13
72°
46°
14
68°
45°
15
73°
50°
16
77°
46°
17
72°
57°
18
66°
59°
19
66°
61°
20
70°
54°
21
68°
50°
22
70°
46°
23
72°
43°
24
72°
54°
25
77°
52°
26
73°
57°
27
73°
55°
28
79°
54°
29
72°
64°
30
70°
55°
1
63°
45°
2
59°
34°
3
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Shell Lake
Shell Lake's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Shell Lake. See also: October | November | December.
