S
M
T
W
T
F
S
26
85°
71°
27
85°
71°
28
84°
70°
29
84°
70°
30
82°
67°
31
77°
64°
1
78°
69°
2
76°
69°
3
77°
68°
4
82°
70°
5
83°
70°
6
83°
69°
7
77°
66°
8
76°
68°
9
77°
68°
10
78°
68°
11
80°
69°
12
82°
69°
13
83°
70°
14
84°
69°
15
83°
68°
16
85°
62°
17
83°
60°
18
76°
58°
19
74°
58°
20
74°
59°
21
75°
59°
22
76°
60°
23
75°
59°
24
76°
61°
25
79°
66°
26
81°
59°
27
76°
59°
28
74°
58°
29
76°
63°
30
79°
66°
31
80°
57°
1
76°
57°
2
74°
56°
3
73°
61°
4
76°
65°
5
80°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Milwaukee
South Milwaukee's August 2026 forecast shows daily high temperatures ranging from 73° to 85°, with overnight lows between 56° and 71°. The average high for August is 79° 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 South Milwaukee. See also: September | October | November.
