S
M
T
W
T
F
S
30
70°
56°
31
73°
56°
1
68°
54°
2
62°
54°
3
68°
48°
4
63°
51°
5
65°
45°
6
63°
47°
7
67°
48°
8
69°
48°
9
64°
43°
10
59°
41°
11
58°
45°
12
58°
38°
13
57°
38°
14
56°
38°
15
57°
39°
16
55°
39°
17
55°
37°
18
54°
41°
19
55°
41°
20
58°
40°
21
63°
44°
22
63°
49°
23
64°
43°
24
61°
47°
25
57°
39°
26
58°
37°
27
51°
39°
28
50°
41°
29
50°
42°
30
52°
42°
1
50°
34°
2
55°
36°
3
50°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Vermilion Bay
Vermilion Bay's September 2026 forecast shows daily high temperatures ranging from 50° to 73°, with overnight lows between 34° and 56°. The average high for September is 59° with an average low of 43°. 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 Vermilion Bay. See also: October | November | December.
