S
M
T
W
T
F
S
26
96°
78°
27
98°
77°
28
101°
74°
29
98°
76°
30
93°
73°
31
96°
72°
1
90°
73°
2
82°
68°
3
91°
66°
4
93°
66°
5
96°
64°
6
95°
66°
7
97°
72°
8
92°
73°
9
91°
74°
10
96°
75°
11
95°
75°
12
96°
76°
13
96°
75°
14
98°
73°
15
98°
73°
16
97°
74°
17
93°
72°
18
96°
70°
19
94°
69°
20
92°
70°
21
92°
68°
22
90°
68°
23
94°
72°
24
93°
72°
25
92°
71°
26
93°
73°
27
94°
73°
28
93°
72°
29
93°
72°
30
90°
71°
31
87°
70°
1
86°
70°
2
88°
69°
3
90°
70°
4
89°
69°
5
90°
70°
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 86° to 98°, with overnight lows between 68° and 76°. The average high for August is 93° with an average low of 72°. 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.
