The Harvest Craft Fair is one of three craft fairs the Somersworth Festival Association holds each year at Somersworth High School, and is among the largest in the Seacoast region. Each fair features over 100 crafters from New Hampshire, Maine and Massachusetts, with most spaces indoors and some outdoor spaces available. Association volunteers serve breakfast and lunch in the cafetorium (cash only). The 2026 Harvest fair runs Saturday, October 24 from 9am to 3pm, and admission is free.