S
M
T
W
T
F
S
29
71°
36°
30
78°
60°
31
84°
67°
1
84°
66°
2
83°
62°
3
83°
67°
4
81°
52°
5
60°
42°
6
67°
41°
7
56°
43°
8
71°
40°
9
78°
57°
10
80°
57°
11
70°
54°
12
84°
56°
13
81°
70°
14
85°
69°
15
86°
69°
16
77°
58°
17
85°
69°
18
73°
42°
19
63°
38°
20
63°
47°
21
71°
50°
22
71°
50°
23
75°
59°
24
74°
57°
25
68°
53°
26
67°
51°
27
65°
50°
28
67°
53°
29
66°
52°
30
67°
51°
1
68°
53°
2
68°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Louisville South
Louisville South's April 2026 forecast shows daily high temperatures ranging from 63° to 85°, with overnight lows between 38° and 69°. The average high for April is 70° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Louisville South. See also: May | June | July.