Overview
- Forecast services split on race-day rain, with the National Weather Service and AccuWeather near 30% and Weather Underground near 60% for Sunday, May 24.
- AccuWeather flags a possible thunderstorm on race day and says rain can delay or cancel the event.
- Pre-race events carry higher odds of wet weather, with Friday’s Carb Day near 90% and Saturday’s Legends Day about 50% according to the National Weather Service.
- A Memorial Day postponement would still face about a 40% chance of rain, based on the National Weather Service outlook.
- IndyStar’s 20-year review shows May 24 has been rainy only once since 2006, which offers context but does not rule out disruptions this year.