S
M
T
W
T
F
S
26
94°
73°
27
93°
74°
28
98°
70°
29
94°
70°
30
91°
69°
31
94°
69°
1
88°
69°
2
87°
75°
3
90°
71°
4
86°
71°
5
93°
70°
6
87°
71°
7
92°
71°
8
94°
71°
9
94°
71°
10
91°
72°
11
92°
71°
12
93°
71°
13
92°
75°
14
98°
73°
15
96°
72°
16
93°
75°
17
98°
73°
18
95°
72°
19
95°
71°
20
96°
72°
21
95°
74°
22
91°
71°
23
95°
71°
24
93°
68°
25
92°
67°
26
87°
70°
27
88°
69°
28
88°
71°
29
84°
68°
30
86°
69°
31
87°
70°
1
88°
70°
2
91°
69°
3
90°
68°
4
89°
66°
5
90°
64°
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 84° to 91°, with overnight lows between 64° and 71°. The average high for August is 88° with an average low of 69°. 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.
