S
M
T
W
T
F
S
26
84°
70°
27
86°
64°
28
73°
59°
29
81°
59°
30
86°
63°
31
75°
64°
1
68°
62°
2
73°
55°
3
77°
61°
4
82°
66°
5
77°
64°
6
75°
64°
7
82°
65°
8
79°
61°
9
73°
63°
10
82°
67°
11
79°
66°
12
81°
66°
13
75°
66°
14
75°
69°
15
79°
69°
16
N/A
17
78°
62°
18
79°
61°
19
76°
54°
20
78°
58°
21
78°
58°
22
77°
59°
23
73°
60°
24
74°
58°
25
76°
59°
26
75°
59°
27
73°
60°
28
75°
58°
29
76°
59°
30
77°
58°
31
71°
59°
1
70°
62°
2
71°
59°
3
70°
55°
4
71°
57°
5
73°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Mequon
Mequon's August 2026 forecast shows daily high temperatures ranging from 70° to 79°, with overnight lows between 54° and 62°. The average high for August is 75° 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 Mequon. See also: September | October | November.