S
M
T
W
T
F
S
26
92°
74°
27
97°
75°
28
84°
60°
29
85°
56°
30
86°
59°
31
73°
62°
1
76°
62°
2
80°
59°
3
83°
55°
4
84°
62°
5
73°
62°
6
81°
59°
7
84°
68°
8
80°
61°
9
79°
67°
10
84°
67°
11
79°
66°
12
82°
66°
13
78°
62°
14
78°
59°
15
76°
62°
16
77°
58°
17
78°
61°
18
78°
63°
19
77°
59°
20
78°
60°
21
76°
60°
22
80°
59°
23
84°
64°
24
77°
63°
25
79°
63°
26
82°
64°
27
83°
63°
28
83°
62°
29
74°
58°
30
73°
57°
31
73°
58°
1
74°
58°
2
76°
61°
3
75°
62°
4
79°
62°
5
81°
61°
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 73° to 84°, with overnight lows between 57° and 67°. The average high for August is 78° with an average low of 62°. 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.
