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
82°
67°
7
86°
65°
8
84°
64°
9
81°
68°
10
79°
65°
11
79°
62°
12
78°
63°
13
78°
57°
14
75°
60°
15
78°
61°
16
78°
61°
17
77°
59°
18
77°
62°
19
80°
59°
20
83°
64°
21
83°
63°
22
84°
65°
23
84°
64°
24
82°
64°
25
80°
63°
26
83°
62°
27
79°
60°
28
77°
62°
29
81°
61°
30
82°
62°
31
82°
62°
1
81°
61°
2
78°
61°
3
81°
60°
4
81°
60°
5
80°
59°
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 75° to 86°, with overnight lows between 57° and 68°. The average high for August is 80° 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.
