Zionsville weather
Best months for weather: May–Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Zionsville, Indiana, United States.
Best Time to Visit
Peak season May–OctOff season Nov–Mar
Zionsville weather by month
When is the best time to visit Zionsville?
Based on weather alone, the best time to visit Zionsville is May–Oct, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 1°C (34°F) in January to 28°C (83°F) in July.
What is the rainiest month in Zionsville?
June is the wettest month, with about 134 mm (5.3 in) of rain on average. February is the driest, with about 68 mm (2.7 in).
What is the hottest month in Zionsville?
July is the warmest, with average highs of 28°C (83°F) and lows of 18°C (65°F). January is the coolest, with highs of 1°C (34°F) and lows of -7°C (19°F).
Does Zionsville have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is June at about 134 mm (5.3 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months