S
M
T
W
T
F
S
26
82°
66°
27
78°
65°
28
78°
60°
29
79°
64°
30
82°
66°
31
84°
66°
1
84°
65°
2
80°
64°
3
86°
62°
4
83°
57°
5
79°
60°
6
81°
59°
7
78°
58°
8
77°
59°
9
77°
57°
10
78°
62°
11
80°
65°
12
82°
64°
13
83°
57°
14
78°
56°
15
78°
57°
16
81°
60°
17
77°
58°
18
76°
56°
19
78°
56°
20
79°
57°
21
80°
61°
22
82°
63°
23
84°
64°
24
85°
64°
25
84°
63°
26
85°
61°
27
82°
60°
28
81°
63°
29
82°
58°
30
79°
54°
31
76°
51°
1
73°
54°
2
73°
52°
3
74°
53°
4
74°
52°
5
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Zilwaukee
Zilwaukee's August 2026 forecast shows daily high temperatures ranging from 72° to 86°, with overnight lows between 51° and 66°. The average high for August is 80° with an average low of 60°. 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 Zilwaukee. See also: September | October | November.
