S
M
T
W
T
F
S
26
81°
59°
27
79°
55°
28
75°
57°
29
80°
60°
30
76°
54°
1
75°
55°
2
76°
56°
3
80°
61°
4
82°
62°
5
82°
62°
6
83°
58°
7
84°
62°
8
84°
63°
9
85°
63°
10
85°
62°
11
86°
64°
12
86°
64°
13
82°
63°
14
79°
65°
15
88°
63°
16
87°
65°
17
86°
64°
18
87°
58°
19
89°
59°
20
82°
60°
21
88°
66°
22
90°
66°
23
90°
60°
24
88°
60°
25
82°
61°
26
84°
62°
27
84°
64°
28
83°
66°
29
90°
64°
30
91°
68°
31
92°
68°
1
92°
67°
2
91°
63°
3
86°
64°
4
90°
64°
5
89°
65°
6
92°
68°
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 75° to 92°, with overnight lows between 54° and 68°. The average high for May is 85° 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 May weather will actually feel in Madison. See also: June | July | August.
