A new heat advisory is issued for New Jersey. See how hot it will get

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Heat and humidity are expected to grip New Jersey for the next three days, prompting the National Weather Service to issue a heat advisory for much of the state from 11 a.m. July 28 through 8 p.m. July 30.

Temperatures are forecast to climb into the 90s across the region, but it will feel closer to 100 degrees or higher due to high humidity levels, according to the NWS. Heat index values could reach as high as 105 in some areas.

Which NJ counties have a heat advisory?

The advisory covers a wide swath of New Jersey, including Bergen, Burlington, Camden, Essex, Gloucester, Hudson, Hunterdon, Mercer, Middlesex, western Monmouth, Morris, Ocean (excluding immediate coastal areas), eastern Passaic, Somerset and Union counties.

Noah Saharia, 7, of Westwood, cools himself down in over 90 degree heat with water at a splash pad at Milton A. Votee Park in Teaneck on Monday, June 23, 2025.
Noah Saharia, 7, of Westwood, cools himself down in over 90 degree heat with water at a splash pad at Milton A. Votee Park in Teaneck on Monday, June 23, 2025.

Forecasters are urging New Jersey residents to stay hydrated, avoid strenuous activity during peak afternoon hours, and limit sun exposure.

Nighttime relief will be minimal, with overnight lows only dipping into the 70s.

How to cope: Our big list of how to stay cool in a North Jersey heat wave

What is the weather forecast for Tuesday, July 29?

Tuesday is expected to bring a near carbon copy of Monday’s conditions, with mostly sunny skies and heat indices again topping 100 degrees.

Authorities recommend wearing lightweight clothing, using fans or air conditioning when possible and never leaving children or pets unattended in vehicles.

This article originally appeared on NorthJersey.com: Heat advisory for NJ issued July 28. See weather forecast

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