S
M
T
W
T
F
S
26
83°
66°
27
83°
67°
28
86°
68°
29
87°
66°
30
85°
67°
31
88°
68°
1
87°
68°
2
88°
67°
3
88°
67°
4
87°
68°
5
89°
67°
6
89°
66°
7
87°
66°
8
87°
65°
9
86°
61°
10
86°
58°
11
79°
58°
12
80°
59°
13
80°
59°
14
81°
60°
15
82°
60°
16
83°
65°
17
82°
66°
18
82°
65°
19
82°
66°
20
86°
65°
21
87°
65°
22
87°
66°
23
Hist. Avg.
80°
64°
24
Hist. Avg.
80°
63°
25
Hist. Avg.
79°
63°
26
Hist. Avg.
79°
63°
27
Hist. Avg.
79°
63°
28
Hist. Avg.
79°
63°
29
Hist. Avg.
79°
62°
30
Hist. Avg.
78°
62°
31
Hist. Avg.
78°
62°
1
Hist. Avg.
78°
62°
2
Hist. Avg.
78°
61°
3
Hist. Avg.
78°
61°
4
Hist. Avg.
77°
61°
5
Hist. Avg.
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Milwaukee
Milwaukee's August 2026 forecast shows daily high temperatures ranging from 79° to 89°, with overnight lows between 58° and 68°. The average high for August is 85° with an average low of 65°. 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.
