S
M
T
W
T
F
S
30
83°
56°
31
66°
54°
1
81°
47°
2
83°
46°
3
83°
46°
4
83°
54°
5
85°
49°
6
87°
46°
7
84°
61°
8
89°
54°
9
90°
48°
10
89°
43°
11
89°
42°
12
87°
49°
13
88°
50°
14
74°
54°
15
77°
52°
16
73°
56°
17
64°
58°
18
71°
55°
19
75°
50°
20
76°
45°
21
75°
42°
22
73°
47°
23
61°
53°
24
65°
53°
25
62°
43°
26
70°
48°
27
68°
51°
28
55°
48°
29
58°
45°
30
59°
46°
1
64°
45°
2
67°
42°
3
66°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Bayfield
Bayfield's September 2026 forecast shows daily high temperatures ranging from 55° to 70°, with overnight lows between 41° and 51°. The average high for September is 63° with an average low of 45°. 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 Bayfield. See also: October | November | December.