S
M
T
W
T
F
S
26
68°
52°
27
79°
52°
28
72°
52°
29
68°
52°
30
57°
43°
1
67°
43°
2
58°
39°
3
63°
47°
4
72°
55°
5
76°
60°
6
66°
46°
7
62°
38°
8
58°
44°
9
67°
48°
10
71°
49°
11
74°
54°
12
75°
53°
13
74°
51°
14
72°
52°
15
74°
57°
16
76°
57°
17
74°
56°
18
77°
58°
19
79°
59°
20
78°
59°
21
80°
58°
22
81°
59°
23
80°
59°
24
77°
58°
25
78°
59°
26
81°
61°
27
81°
60°
28
77°
59°
29
80°
60°
30
76°
59°
31
77°
60°
1
78°
60°
2
80°
61°
3
81°
58°
4
76°
56°
5
75°
56°
6
76°
55°
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 58° to 81°, with overnight lows between 38° and 61°. The average high for May is 74° with an average low of 55°. 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.
