A new and distinct peach variety of Prunus persica named ‘NJ357’ is provided. This variety is distinguished from other peach varieties by its unique combination of showy flowers, large, nearly round, freestone fruit, with an attractive red blush and orange-red mottle over a bright yellow-orange ground color, ripening in midseason, with yellow-orange, firm, juicy flesh, and sweet, subacid flavor that is maintained following cold storage.