S
M
T
W
T
F
S
26
82°
66°
27
82°
66°
28
81°
65°
29
81°
64°
30
76°
63°
31
74°
62°
1
74°
63°
2
75°
64°
3
78°
64°
4
79°
63°
5
77°
64°
6
77°
63°
7
74°
63°
8
74°
64°
9
76°
64°
10
77°
63°
11
77°
64°
12
81°
62°
13
82°
63°
14
81°
62°
15
79°
63°
16
83°
55°
17
80°
53°
18
72°
53°
19
70°
54°
20
72°
54°
21
73°
55°
22
75°
54°
23
75°
55°
24
76°
59°
25
77°
61°
26
79°
53°
27
72°
53°
28
70°
54°
29
72°
60°
30
77°
59°
31
78°
52°
1
72°
50°
2
69°
52°
3
70°
57°
4
74°
54°
5
77°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sturgeon Bay
Sturgeon Bay's August 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 50° and 66°. The average high for August is 76° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Sturgeon Bay. See also: September | October | November.