The fair at Zion Methodist Church, in Brothertoft Road. starts at 10am and will run until 2pm.
There will be entertainment from Boston West Academy Choir at 10.15am and after 11am Kirton Brass Band will be playing.
Lunches of jacket potatoes and fillings, plus desserts will be served along with coffee, tea and mince pies.
There will be stalls selling cakes, books, vegetables, flowers and much more. There will also be a tombola, raffle, games, gift bags and competitions.