Louisville, Kentucky weather in August

Averages from 2021–2025 (155 days of record).

Average high: 85°F
Average low: 68°F
Rainy days: ~9 per month
Total precipitation: 3.1 in
Warmest recorded: 97°F
Coldest recorded: 55°F

Expect August days in Louisville, Kentucky to top out around 85°F and cool to about 68°F overnight, with roughly 9 days of measurable rain across the month. In recent years August has ranged from 55°F to 97°F.

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Current Louisville, Kentucky forecast → · Historical data by Open-Meteo (ERA5).