Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
10am–1pm Third Annual Mamaroneck Monarch Butterfly Festival Ages: AllEnvironment Festivals Harbor Island ParkMamaroneck
10–11:30am Tree Journals: Exploring the Life of Trees at the Hudson Park Children’s Greenhouse Ages: 5 – 12Classes Craft & DIY Hudson Park Children’s GreenhouseNew Rochelle
10–11am Tree Journals: Exploring the Life of Trees Ages: AllClasses Environment Hudson Park Children’s GreenhouseNew Rochelle
11am–12:30pm 2–3:30pm Wolves of North America Ages: AllEnvironment Outdoors Wolf Conservation CenterSouth Salem
Noon–4pm Family Science Workshop: Tiny but Mighty Plant Cells Ages: 9 and upArt Attractions Hudson River MuseumYonkers
Noon–4pm Family Art Workshop: Time for Tie Dye Ages: 5 and upArt Attractions Hudson River MuseumYonkers
Noon–11pm Yorktown San Gennaro Feast Ages: AllAttractions Festivals Yorktown San Gennaro FeastYorktown Heights
3–5pm Drop-in Days at Hoff-Barthelson Music School Ages: AllFree Music Hoff-Barthelson Music SchoolScarsdale
Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
11am–12:30pm 2–3:30pm Wolves of North America Ages: AllEnvironment Outdoors Wolf Conservation CenterSouth Salem
Noon–4pm Family Science Workshop: Tiny but Mighty Plant Cells Ages: 9 and upArt Attractions Hudson River MuseumYonkers
Noon–4pm Family Art Workshop: Time for Tie Dye Ages: 5 and upArt Attractions Hudson River MuseumYonkers
Noon–10pm Yorktown San Gennaro Feast Ages: AllAttractions Festivals Yorktown San Gennaro FeastYorktown Heights
Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
7–8:30pm Drop-in Days at Hoff-Barthelson Music School Ages: AllFree Music Hoff-Barthelson Music SchoolScarsdale
Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
7–9:30pm Drop-in Days at Hoff-Barthelson Music School Ages: AllFree Music Hoff-Barthelson Music SchoolScarsdale
Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
4–9pm Drop-in Days at Hoff-Barthelson Music School Ages: AllFree Music Hoff-Barthelson Music SchoolScarsdale
4:30–6:30pm Cooking up Community Ages: 5 and upClasses Food & Drink Thomas H. Slater CenterWhite Plains
Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
6–8pm Drop-in Days at Hoff-Barthelson Music School Ages: AllFree Music Hoff-Barthelson Music SchoolScarsdale
Tomorrow, 4:30 pm Science in Action @ the VILLAGE BRANCH Haverstraw King’s Daughters Public Library Village Branch
AMNY True Grit: Clarence James celebrates the forgotten spirit of the Black cowboy in new SoHo exhibit
Brooklyn Paper Kellogg’s Diner reopens in Williamsburg with new owners, a new menu, and the same charm