Heat waves in NYC: 3+ days in a row at 90°F or hotter. Sun, Jun 6, 2021: 92°F / 76°F Mon, Jun 7, 2021: 91°F / 76°F, 0.07″ rain Tue, Jun 8, 2021: 90°F / 72°F, 0.47″ rain Wed, Jun 9, 2021: 90°F / 72°F, 0.01″ rain Source: NOAA GHCN-Daily, Ny City Cntrl Park (USW00094728).