S
M
T
W
T
F
S
30
70°
62°
31
74°
61°
1
74°
56°
2
73°
53°
3
71°
59°
4
73°
59°
5
72°
58°
6
71°
56°
7
66°
58°
8
69°
51°
9
67°
49°
10
63°
58°
11
66°
57°
12
71°
56°
13
70°
57°
14
71°
56°
15
70°
58°
16
64°
50°
17
63°
49°
18
64°
48°
19
Hist. Avg.
65°
52°
20
Hist. Avg.
65°
52°
21
Hist. Avg.
64°
51°
22
Hist. Avg.
64°
51°
23
Hist. Avg.
64°
51°
24
Hist. Avg.
64°
51°
25
Hist. Avg.
64°
50°
26
Hist. Avg.
63°
50°
27
Hist. Avg.
63°
50°
28
Hist. Avg.
63°
50°
29
Hist. Avg.
63°
49°
30
Hist. Avg.
62°
49°
1
Hist. Avg.
62°
49°
2
Hist. Avg.
62°
49°
3
Hist. Avg.
62°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Bayfield
Bayfield's September 2026 forecast shows daily high temperatures ranging from 63° to 74°, with overnight lows between 48° and 62°. The average high for September is 69° with an average low of 56°. 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.