S
M
T
W
T
F
S
26
87°
71°
27
88°
71°
28
84°
70°
29
86°
69°
30
87°
74°
31
93°
74°
1
91°
73°
2
90°
74°
3
91°
74°
4
92°
73°
5
91°
73°
6
87°
72°
7
84°
68°
8
84°
67°
9
85°
68°
10
85°
69°
11
83°
68°
12
84°
70°
13
85°
73°
14
88°
73°
15
89°
72°
16
89°
73°
17
87°
73°
18
88°
72°
19
88°
73°
20
89°
72°
21
82°
72°
22
83°
69°
23
82°
71°
24
82°
71°
25
83°
70°
26
84°
71°
27
83°
70°
28
90°
68°
29
88°
67°
30
85°
63°
31
86°
66°
1
88°
68°
2
89°
69°
3
88°
66°
4
83°
67°
5
84°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Louisville
Louisville's August 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 63° and 74°. The average high for August is 87° with an average low of 70°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Louisville. See also: September | October | November.
