The highly anticipated Chicago River Swim scheduled for Sunday has been canceled due to weather-related safety concerns, including a flood watch currently in effect for the area. Heavy rainfall and flooding have led to multiple events being altered or postponed throughout Chicago. While some participants attempted to engage in related activities, the overall scenario prompted organizers to prioritize safety, leading to the decision to cancel the swim. Additionally, officials had previously prepared for the event by testing the water quality, addressing concerns about its cleanliness for swimming. The weekend also saw other events moving indoors as a precaution against the rainy forecast.