S
M
T
W
T
F
S
26
79°
57°
27
77°
53°
28
80°
56°
29
74°
57°
30
79°
58°
1
76°
58°
2
80°
60°
3
83°
60°
4
83°
59°
5
79°
56°
6
75°
52°
7
75°
53°
8
76°
55°
9
80°
60°
10
78°
54°
11
77°
54°
12
78°
59°
13
83°
61°
14
84°
62°
15
85°
62°
16
85°
63°
17
86°
63°
18
86°
62°
19
85°
64°
20
85°
63°
21
83°
64°
22
82°
63°
23
80°
58°
24
81°
61°
25
86°
63°
26
82°
59°
27
83°
60°
28
84°
65°
29
88°
67°
30
87°
66°
31
89°
66°
1
89°
64°
2
88°
62°
3
87°
62°
4
83°
63°
5
83°
62°
6
84°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Louisville
Louisville's May 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 52° and 67°. The average high for May is 82° with an average low of 60°. 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 Louisville. See also: June | July | August.
