Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
4am–7pm Beasties and Besties Halloween Bash Ages: 3 – 8Halloween Holiday Stepping Stones Museum for ChildrenNorwalk
9am–4pm White Plains Road Farmers Market & DOT NYC Open Streets Ages: 5 – 8Caribbean Community Gloria Dei Old Swedes Episcopal ChurchPhiladelphia
9am–2pm 4th Annual VEG Cares 5K to Benefit Local Pets Ages: AllAnimals Fundraisers Manhattanville CollegePurchase
9am–2pm Yorktown H.S. Annual Music Tag Sale Ages: AllCommunity Free Yorktown High SchoolYorktown Heights
10am–6pm Brick-or-Treat at LEGOLAND® New York Ages: AllAttractions Halloween LEGOLAND New York ResortGoshen
10am–7pm Brick-or-Treat: Monster Party Ages: 3 – 12Attractions Games LEGOLAND Discovery Center WestchesterYonkers
10am–4pm Battle of Pell’s Point Encampment Ages: AllCommunity Free St. Paul’s Church National Historic SiteMt. Vernon
10am–4pm Battle of Pell’s Point Encampment Ages: AllCommunity Free Saint Paul’s Church National Historic SiteMt. Vernon
10am–noon BronxWorks Annual 5K Fun Run/Walk Monster Mash Hunger Dash Ages: AllCommunity Halloween Orchard BeachBronx
11am–12:30pm Farming & Witchcraft Ages: 5 and upClasses Craft & DIY Hilltop Hanover Farm & Environmental CenterYorktown Heights
11am 38th Annual Bronx Puerto Rican Day Parade Ages: AllFestivals Free Bronx Puerto Rican Day ParadeBronx
12:30pm 2pm 3:30pm Planetarium Shows at Hudson River Museum Ages: AllArt Attractions Hudson River MuseumYonkers
Brooklyn Paper National Grid says it pays ‘more than its fair share’ for Gowanus Canal Superfund cleanup in federal suit