8 – 11 pm Halloween night @ Repeal XVIII with Band of Characters! Free Halloween Repeal XVIIIHuntington
8 – 11 pm HOODOO LOUNGERS HALLOWEEN BALL Halloween Holiday MASONIC CLUB on top of Whalers MuseumSag Harbor
Noon – 5 pm Día de los Muertos Family Celebration in Heckscher Park Ages: AllArt Family Free Heckscher State ParkEast Islip
2 – 3:30 pm Tommy Sullivan: a life in music “Eighty years on earth, sixty-eight onstage Free Music East Hampton LibraryEast Hampton
2 – 5 pm East Meets West Jazz Jam Session featuring REEB Free Music southampton cultural centerSouthampton
3 – 5 pm The Meridien Duo in Concert presented by St. John’s Concerts Music St. Johns Episcopal HuntingtonHuntington
5 – 6:30 pm Bridgehampton Chamber Music BCM Autumn: Gilles Vonsattel Music Bridgehampton Presbyterian ChurchBridgehampton
7 – 10 pm A Box of Chocolates presents “Hope in the Blues” with The Hitman Blues Band + Open Mic Community Music Unitarian Universalist Fellowship Bay ShoreBay Shore
Today, 10 am Friends of the Long Pond Greenbelt: Adopt a Patch Work Session South Fork Natural History Museum (SoFo)
Today, 10 am Vendors Wanted Avery Homestead County Park Craft & Collectible Show Avery Homestead County Park