Forecasters say the hot, hazy and sometimes humid weather will remain in the Garden State all week, with highs each day in the mid- to upper 90s and evening lows only dropping into the mid-70s.
The worst time period will likely be Tuesday and Wednesday, when temperatures could reach 100 degrees. The National Weather Service has already issued an excessive heat watch for both days.
Residents are being urged to avoid prolonged exposure to the sun and the heat, especially those with respiratory issues. Experts recommend drinking lots of water and - if possible - staying in air-conditioned areas.
The state Department of Environmental Protection has issued an air quality health advisory that will remain in effect until 10 p.m. Sunday. The alert means air quality in the region may approach or exceed unhealthy standards.