S
M
T
W
T
F
S
26
51°
37°
27
54°
36°
28
62°
37°
29
59°
34°
30
49°
41°
1
64°
29°
2
73°
33°
3
77°
46°
4
73°
42°
5
57°
31°
6
40°
30°
7
68°
28°
8
70°
39°
9
78°
46°
10
73°
49°
11
88°
42°
12
83°
54°
13
87°
55°
14
88°
62°
15
84°
51°
16
77°
56°
17
64°
44°
18
59°
36°
19
49°
34°
20
56°
39°
21
69°
36°
22
65°
39°
23
78°
39°
24
83°
48°
25
82°
49°
26
76°
55°
27
68°
52°
28
75°
54°
29
78°
52°
30
77°
51°
31
75°
55°
1
75°
52°
2
74°
51°
3
78°
54°
4
78°
57°
5
87°
57°
6
84°
56°
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 68° to 87°, with overnight lows between 51° and 57°. The average high for May is 77° with an average low of 54°. 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.
