After a relatively comfortable July 4th, the extreme heat is returning to Massachusetts and the National Weather Service has issued a heat advisory because of how hot it will feel through Monday.The WBZ Weather Team is implementing a NEW NEXT Weather Alert given heat-related dangers ahead Sunday and Monday.

Meteorologist Jacqueline Thomas says another hot, humid day can be expected Monday with highs in the 90s and a chance for afternoon thunderstorms.

Storm Team 5 is tracking a surge in heat and humidity continuing through Monday, with high temperatures set to reach into the low to mid-90s for many communities. With heat indices expected to peak near 100 degrees on Monday,