Nashville, Tennessee weather in September

Averages from 2021–2025 (150 days of record).

Average high: 82°F
Average low: 64°F
Rainy days: ~11 per month
Total precipitation: 7.7 in
Warmest recorded: 96°F
Coldest recorded: 48°F

Expect September days in Nashville, Tennessee to top out around 82°F and cool to about 64°F overnight, with roughly 11 days of measurable rain across the month. In recent years September has ranged from 48°F to 96°F.

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Current Nashville, Tennessee forecast → · Historical data by Open-Meteo (ERA5).