S
M
T
W
T
F
S
26
85°
73°
27
86°
69°
28
75°
64°
29
79°
62°
30
88°
61°
31
76°
65°
1
68°
66°
2
74°
64°
3
77°
61°
4
85°
64°
5
77°
69°
6
76°
67°
7
85°
70°
8
82°
68°
9
76°
63°
10
82°
70°
11
77°
70°
12
80°
68°
13
76°
67°
14
75°
68°
15
81°
71°
16
87°
69°
17
77°
66°
18
80°
62°
19
74°
61°
20
76°
59°
21
72°
60°
22
79°
62°
23
75°
59°
24
74°
55°
25
79°
57°
26
82°
67°
27
77°
64°
28
82°
60°
29
79°
64°
30
87°
72°
31
88°
72°
1
85°
70°
2
83°
68°
3
79°
69°
4
84°
67°
5
83°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Milwaukee
Milwaukee's August 2026 forecast shows daily high temperatures ranging from 79° to 88°, with overnight lows between 67° and 72°. The average high for August is 84° with an average low of 69°. 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 Milwaukee. See also: September | October | November.
