NYC heat wave expected to bring 100-degrees days ahead of July 4th

Published June 29, 2026 7:59 AM EDT

While Monday will offer relatively comfortable temperatures, the New York City area is bracing for a severe, multi-day heat wave that could see triple digits by the end of the week.

What we know:

Monday is the coolest day of this week's forecast, though it will still be plenty warm. Current morning temperatures are sitting comfortably in the mid-to-upper 60s with a touch of humidity.

By the afternoon, expect mainly clear skies as temperatures rise. New York City will peak around 84 to 85 degrees. Long Island will stay in the lower 80s, while inland New Jersey will creep into the upper 80s.

Heat wave

By the numbers:

Starting Wednesday, an excessive heat watch goes into effect for the region, lasting through Friday or Saturday depending on your exact location.

Tuesday, temperatures will begin crossing into the upper 80s and low 90s. By Wednesday, the temperature will hit a sweltering 95 degrees. The peak of the heat wave arrives on Thursday and Friday, where temperatures are expected to reach 100 degrees, and humidity could push "feels like" temperatures into the 105-110 range.

  • Monday: Clear skies following some morning fog out east. Highs will range from the lower 80s to the mid-and-upper 80s.
  • Tuesday: Temperatures climb rapidly, crossing into the upper 80s and low 90s for most of the area.
  • Wednesday: The Excessive Heat Watch officially begins as high humidity drives the temperature up to 95 degrees.
  • Thursday: The peak of the heat wave arrives, with dangerous humidity and a high of 100 degrees.
  • Friday: Extreme conditions persist for a second consecutive day, with triple-digit temperatures at 100 degrees.
  • Saturday (4th of July): The heat wave breaks with a high of 92 degrees.

July 4th forecast

What's next:

If you are planning outdoor barbecues for the Fourth of July on Saturday, there is some good news and bad news. 

The extreme heat is expected to break, providing a much-needed cool-down for the holiday. However, the shifting weather patterns also bring a chance of scattered showers. 

The Source: Information from this article was provided by the FOX 5 Weather Team.

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