S
M
T
W
T
F
S
26
58°
36°
27
62°
39°
28
61°
38°
29
57°
44°
30
61°
43°
1
56°
40°
2
56°
41°
3
67°
46°
4
69°
48°
5
69°
49°
6
68°
46°
7
60°
43°
8
65°
47°
9
61°
44°
10
60°
41°
11
59°
38°
12
59°
39°
13
64°
48°
14
61°
45°
15
62°
44°
16
66°
50°
17
67°
44°
18
61°
41°
19
62°
44°
20
67°
52°
21
64°
48°
22
64°
44°
23
62°
46°
24
65°
52°
25
72°
54°
26
70°
50°
27
64°
48°
28
66°
52°
29
72°
53°
30
75°
55°
31
77°
56°
1
76°
55°
2
80°
58°
3
79°
57°
4
80°
57°
5
75°
53°
6
79°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Madison
Madison's May 2026 forecast shows daily high temperatures ranging from 56° to 80°, with overnight lows between 36° and 58°. The average high for May is 66° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Madison. See also: June | July | August.
