S
M
T
W
T
F
S
26
83°
69°
27
83°
69°
28
81°
68°
29
81°
66°
30
77°
62°
31
75°
60°
1
75°
61°
2
76°
64°
3
78°
67°
4
80°
67°
5
79°
66°
6
79°
67°
7
80°
66°
8
76°
65°
9
77°
63°
10
77°
61°
11
80°
65°
12
82°
66°
13
83°
67°
14
84°
66°
15
83°
67°
16
81°
67°
17
84°
59°
18
78°
58°
19
75°
57°
20
74°
56°
21
75°
57°
22
75°
57°
23
76°
58°
24
78°
58°
25
80°
59°
26
81°
64°
27
82°
58°
28
77°
56°
29
73°
57°
30
74°
57°
31
76°
58°
1
79°
54°
2
74°
55°
3
73°
58°
4
77°
63°
5
77°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in North Madison
North Madison's August 2026 forecast shows daily high temperatures ranging from 73° to 84°, with overnight lows between 54° and 69°. 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 North Madison. See also: September | October | November.