Rain and thunderstorms could disrupt outdoor events, including the Ohio River Paddlefest and concerts. Visitors are advised to prepare for wet conditions, as heavy downpours may occur. While indoor events like the Omega Psi Phi Fraternity's conclave are less likely to be affected, outdoor attendees should consider bringing rain gear. The potential for lightning could pose safety risks for those on the Ohio River or attending open-air concerts. Event organizers are monitoring the weather closely to ensure safety and minimize disruptions.