Police said it was too early to confirm the identity of the body, which was found today in a ditch a mile from where Lewis was last seen in the village, but officers are linking the discovery to the search for the missing schoolboy.
Lewis was playing on the field on Sunday when he asked his friends to look after his mobile phone while he went to the toilet. He never returned.
Reverend Mary Gregory, from the Church of The Good Shepherd in Edenthorpe, says the church will be open all day today. There will be a book of condolences and people are invited to light a candle for the family of the young boy that has died.
South Yorkshire Police say they are not treating the death as suspicious.