S
M
T
W
T
F
S
26
78°
60°
27
79°
61°
28
80°
60°
29
82°
61°
30
80°
62°
31
82°
62°
1
81°
61°
2
80°
58°
3
75°
56°
4
75°
55°
5
76°
60°
6
78°
61°
7
80°
60°
8
79°
60°
9
81°
61°
10
81°
61°
11
80°
60°
12
81°
61°
13
80°
61°
14
82°
59°
15
82°
59°
16
81°
60°
17
78°
59°
18
82°
61°
19
81°
60°
20
78°
55°
21
80°
51°
22
73°
51°
23
75°
52°
24
77°
52°
25
75°
49°
26
73°
50°
27
73°
50°
28
71°
49°
29
71°
48°
30
72°
48°
31
71°
47°
1
70°
47°
2
70°
49°
3
71°
50°
4
70°
50°
5
69°
49°
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 69° to 82°, with overnight lows between 47° and 62°. The average high for August is 77° with an average low of 56°. 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.
