S
M
T
W
T
F
S
26
73°
56°
27
79°
55°
28
77°
61°
29
69°
55°
30
63°
46°
1
60°
37°
2
57°
41°
3
65°
50°
4
76°
60°
5
70°
55°
6
67°
50°
7
58°
45°
8
67°
52°
9
68°
55°
10
66°
53°
11
70°
53°
12
69°
56°
13
72°
57°
14
73°
62°
15
74°
63°
16
73°
62°
17
74°
64°
18
80°
64°
19
77°
63°
20
78°
65°
21
81°
65°
22
81°
64°
23
79°
64°
24
74°
62°
25
77°
65°
26
80°
66°
27
78°
64°
28
75°
65°
29
77°
63°
30
76°
59°
31
79°
66°
1
79°
66°
2
82°
67°
3
82°
64°
4
78°
60°
5
77°
60°
6
77°
61°
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 57° to 82°, with overnight lows between 37° and 67°. The average high for May is 73° with an average low of 59°. 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.
