S
M
T
W
T
F
S
26
61°
39°
27
72°
36°
28
64°
36°
29
63°
48°
30
61°
46°
1
64°
39°
2
59°
45°
3
61°
43°
4
73°
37°
5
82°
45°
6
68°
54°
7
64°
45°
8
63°
39°
9
63°
46°
10
73°
48°
11
63°
45°
12
68°
39°
13
73°
46°
14
66°
48°
15
66°
46°
16
82°
41°
17
88°
54°
18
95°
68°
19
99°
71°
20
93°
55°
21
72°
49°
22
64°
51°
23
65°
55°
24
69°
57°
25
75°
56°
26
77°
57°
27
76°
56°
28
79°
58°
29
77°
58°
30
78°
59°
31
83°
55°
1
76°
57°
2
73°
55°
3
70°
55°
4
72°
59°
5
77°
58°
6
77°
58°
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 64° to 99°, with overnight lows between 49° and 71°. The average high for May is 77° with an average low of 57°. 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.
