In April, Indianapolis typically sees daytime highs of 16.9°C and overnight lows around 4.6°C. Compared to the annual average high of 16.5°C, April runs +0.4°C.
April in Indianapolis averages a daytime high of 16.9°C and an overnight low of 4.6°C.
April runs +0.4°C compared to Indianapolis's annual average high of 16.5°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 16.9°C and cooler evenings around 4.6°C.