S
M
T
W
T
F
S
26
96°
66°
27
89°
69°
28
92°
70°
29
92°
66°
30
86°
69°
31
74°
62°
1
81°
61°
2
84°
59°
3
85°
61°
4
71°
53°
5
79°
47°
6
84°
53°
7
75°
55°
8
81°
51°
9
81°
62°
10
81°
56°
11
84°
63°
12
85°
65°
13
81°
62°
14
79°
62°
15
82°
65°
16
79°
54°
17
86°
51°
18
80°
55°
19
79°
61°
20
85°
56°
21
81°
56°
22
79°
50°
23
79°
57°
24
82°
62°
25
83°
54°
26
77°
54°
27
79°
58°
28
86°
59°
29
83°
61°
30
81°
60°
31
82°
60°
1
77°
54°
2
71°
54°
3
71°
53°
4
75°
60°
5
73°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Madison
Madison's August 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 50° and 62°. The average high for August is 79° with an average low of 57°. 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 Madison. See also: September | October | November.
