S
M
T
W
T
F
S
26
89°
69°
27
88°
68°
28
86°
68°
29
86°
67°
30
84°
67°
31
80°
66°
1
80°
67°
2
83°
67°
3
86°
66°
4
81°
64°
5
80°
63°
6
79°
62°
7
84°
67°
8
81°
66°
9
85°
67°
10
84°
66°
11
83°
66°
12
85°
67°
13
86°
67°
14
86°
66°
15
81°
66°
16
78°
65°
17
79°
66°
18
83°
66°
19
85°
65°
20
85°
65°
21
76°
56°
22
76°
57°
23
77°
57°
24
75°
62°
25
77°
63°
26
78°
64°
27
77°
66°
28
85°
65°
29
87°
57°
30
83°
56°
31
79°
62°
1
77°
62°
2
77°
60°
3
84°
66°
4
86°
62°
5
84°
55°
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 75° to 89°, with overnight lows between 55° and 69°. The average high for August is 82° with an average low of 64°. 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.
