What to wear to Louder Than Life: Louisville sits at 25°C (77°F) by day and 13°C (55°F) at night in September, on open field, with a moderate chance of rain. That means a light base with one warm layer you can carry, broken-in boots or sturdy trainers, and a bag small enough for the gate rules. The crowd leans metal, rock and punk, so anything that survives the day reads as right.






