S
M
T
W
T
F
S
26
61°
39°
27
65°
42°
28
63°
42°
29
58°
49°
30
57°
43°
1
61°
44°
2
54°
39°
3
57°
42°
4
62°
46°
5
67°
50°
6
66°
50°
7
66°
48°
8
64°
47°
9
61°
48°
10
64°
46°
11
62°
45°
12
63°
49°
13
63°
48°
14
64°
45°
15
62°
45°
16
62°
46°
17
60°
45°
18
62°
46°
19
68°
52°
20
67°
48°
21
65°
47°
22
66°
48°
23
65°
47°
24
66°
50°
25
69°
56°
26
73°
51°
27
66°
50°
28
67°
50°
29
69°
55°
30
75°
58°
31
76°
55°
1
74°
56°
2
77°
60°
3
78°
60°
4
78°
59°
5
77°
54°
6
70°
53°
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 54° to 78°, with overnight lows between 39° and 60°. The average high for May is 66° with an average low of 49°. 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.
