March in Louisville averages a daily high of 14.8°C with nights around 3.3°C. Expect roughly 12.2 wet days totalling 121mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Louisville is April–May.
Based on LOUISVILLE MCALPINE, KY US (3.8km), 1995–2024. 14 years of March data.