Heat waves in NYC: 3+ days in a row at 90°F or hotter. Sun, Jul 26, 2020: 92°F / 77°F Mon, Jul 27, 2020: 93°F / 76°F Tue, Jul 28, 2020: 93°F / 80°F Wed, Jul 29, 2020: 90°F / 77°F Thu, Jul 30, 2020: 92°F / 74°F, 0.08″ rain Source: NOAA GHCN-Daily, Ny City Cntrl Park (USW00094728).