The somewhat cooler and drier start to the week is over, and the muggy air is now making a not-so-subtle return.High pressure ...

Heat and humidity return to Philadelphia area, pop-up storms possible mid-week. See the weather forecast. A fter a relatively ...

It's another gorgeous summer day in the Philadelphia region with seasonably hot temperatures and relatively low humidity. We ...

On Monday at 2:25 p.m. an updated heat advisory was released by the National Weather Service in effect until Wednesday at 8 p.m. for Western Montgomery, Eastern Montgomery, Upper Bucks and Lower Bucks ...

The National Weather Service in Mount Holly, New Jersey, expects temperatures to climb above the seasonal average early next ...

The Philadelphia region will have the potential for pop-up storms on Wednesday and Thursday as the temperatures heat up.

Another air quality alert is in effect for Philly and its neighboring Pennsylvania counties Sunday, and it looks like more ...

Heat advisories have been issued for southeastern Pennsylvania and parts of New Jersey. The region that includes Berks and Chester counties will be under a heat advisory from 11 a.m. Tuesday until 8 p ...

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 ...

Much of the U.S. is under extreme heat warnings or advisories while New York, Philadelphia and Washington DC could feel like 100 degrees or more.

The mugginess, along with the attendant downpours, has been related to a traffic jam in the atmosphere and above-normal sea-surface temperatures in the Gulf and the Atlantic, said Art DeGaetano, ...