Manhattan was extremely hot on July 3 and July 4, with New York City seeing a dangerous heat wave that pushed Central Park to 100 degrees on July 3 and kept conditions sweltering into July 4.

What that means

  • July 3: Central Park reached 100 degrees, the city’s first 100-degree day since 2012.
  • July 4: Temperatures stayed very hot and humid, with forecasts still describing conditions as scorching for holiday celebrations.
  • The broader setup was a heat wave affecting the region, with severe heat and humidity continuing through the holiday period.

Quick read

So, in plain terms: Manhattan was not just “warm” — it was dangerously hot on both days, especially on July 3 when the city hit triple digits.

Date| Manhattan / NYC heat signal
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July 3| Central Park hit 100 degrees
July 4| Still scorching, with dangerous heat and humidity 2

TL;DR: Manhattan was around 100 degrees on July 3 , and still brutally hot on July 4.