National Weather Service United States Department of Commerce

The heat and humidity is not going anywhere the next couple of days with peak heat index values each afternoon topping 100 degrees for most locations. A cold front will move through late Tuesday/Tuesday night, ushering in cooler (and less humid) air for midweek.
Heat and humidity will continue across much of the region through Tuesday. A stronger cold front moves through Tuesday night, bringing cooler temperatures to the region for the remainder of the work week.