S
M
T
W
T
F
S
30
77°
59°
31
78°
52°
1
72°
50°
2
69°
52°
3
70°
57°
4
74°
54°
5
77°
50°
6
74°
49°
7
68°
49°
8
69°
55°
9
71°
54°
10
68°
50°
11
68°
53°
12
67°
49°
13
70°
48°
14
66°
46°
15
64°
47°
16
66°
54°
17
65°
55°
18
72°
56°
19
73°
52°
20
74°
53°
21
70°
46°
22
64°
47°
23
62°
46°
24
61°
43°
25
62°
49°
26
63°
46°
27
Hist. Avg.
65°
46°
28
Hist. Avg.
64°
46°
29
Hist. Avg.
64°
45°
30
Hist. Avg.
63°
45°
1
Hist. Avg.
63°
44°
2
Hist. Avg.
62°
44°
3
Hist. Avg.
62°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Sturgeon Bay
Sturgeon Bay's September 2026 forecast shows daily high temperatures ranging from 61° to 78°, with overnight lows between 43° and 59°. The average high for September is 69° with an average low of 51°. 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 Sturgeon Bay. See also: October | November | December.
