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 ...

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Almost 85 million Americans from South Dakota to Texas and North Carolina to Florida are already under extreme heat warnings, ...

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 ...

A heat advisory is in effect in Boston and several other Massachusetts communities through 7 p.m. on July 17. The National Weather Service warned of "dangerous heat and humidity" with heat indices ...

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 ...

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.