In April, Louisville typically sees daytime highs of 19.6°C and overnight lows around 6.5°C. Compared to the annual average high of 18.9°C, April runs +0.7°C.
April in Louisville averages a daytime high of 19.6°C and an overnight low of 6.5°C.
April runs +0.7°C compared to Louisville's annual average high of 18.9°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 19.6°C and cooler evenings around 6.5°C.