How hot will it get as the humidity builds and a heat dome spreads toward the Northeast? What is a heat dome? Here's what to know and what it means.

The National Weather Service sent out millions of extreme heat warnings, heat watches and heat advisory alerts early Monday ...

A heat advisory is in effect for the Philadelphia area with potential heat indices up to 103 degrees, urging precautions ...

Delaware County forecast shows a replay as well on Monday and Tuesday: not quite fall-like weather but a respite from the ...

It's a NEXT Weather alert day as heat and humidity soar Thursday and it will feel like 105 in some areas. Meteorologist Kate ...

The mugginess, along with the attendant downpours, has been related to a traffic jam in the atmosphere and above-normal ...

A NEXT Weather Alert is in place Thursday in the Philadelphia area because of feels-like temperatures that will soar to near ...

Zucchini and summer squash are being put to good use in the city's longest running non-profit vegetable-based racing ...

The National Weather Service is warning of hazardous heat conditions on Thursday in eastern and southeastern Pennsylvania, as well as parts of New Jersey. The agency issued a heat advisory that ...

A heat advisory is in place across the Northeast, from Maryland to Maine, where residents are bracing for temperatures 5 to 15 degrees above average.

Thursday could bring the hottest weather of the week to Philadelphia, with temperatures in the mid-90s, high humidity and possibility of rain in the evening.