Explore Hempstead House on Long Island's Gold Coast, once home to the Guggenheims and now a public museum at Sands Point Preserve.

WHAT'S NEW: Heat advisories likely. Peak of the heat is Friday with feels-like temperatures around 100 degrees. WHAT'S NEXT: Less humid air in place. Comfortable levels of humidity.

WHAT'S NEW: Very humid and high temperatures will make temperatures feel like 100 degrees on Friday.