Meteorologists are cautiously optimistic about weather conditions for the 109th running of the Indy 500 as patchy rain moves across Indiana on Sunday morning. A ceiling of dry air over the Indy metro area could help prevent any heavy rain from falling,

The Indianapolis 500 on Sunday was delayed due to inclement weather moving into the area of Indianapolis Motor Speedway in Speedway, Indiana. Drivers waited in their cars, but had to await the go-ahead to warm up their engines and then start the race. Engines were eventually started at 1:21 p.m. ET, 36 minutes after the planned start time.

It's Memorial Day weekend, which is annually one of the most important of the year for motorsports fans. Sunday's schedule will kick off with the Formula 1 Monaco Grand Prix, leading into the 2025 Indianapolis 500 and concluding with NASCAR's Coca-Cola 600 in Charlotte.