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