The National Weather Service called the warm and above-average temperatures coming in behind the system "the first ...

Summer is near in Philly and so is the first heat wave. Here's what you need to know about the incoming 'heat dome', from ...

The first major U.S. heat wave of the year starts on Friday. It brings dangerously high temperatures and is expected to last ...

Central Pennsylvania is bracing for a dynamic weather pattern, with strong thunderstorms possible Thursday and a significant ...

Heat indices could spike into the triple digits on June 22 and June 23 as both the temperature and humidity reach their ...

Heat is the number one killer -- and it’s heading to the most densely populated part of America for a prolonged period.

The high temperature for Wednesday June 18 is expected to reach about 76 degrees in Norwich, according to the National ...

NWS issues severe weather forecast for Washington D.C., with thunderstorms and high heat index warnings for the coming days.

Five consecutive days of 90-degree temperatures are in the forecast for the Susquehanna Valley next week.Susquehanna Valley ...

A heat wave is in the forecast for eastern Nebraska this weekend, with the heat index predicted to reach triple digits.

Heat indexes -- a measure of how hot it feels factoring in humidity -- could near 110 degrees Monday through Wednesday.

Nassau and Suffolk counties are at "marginal risk" of showers and thunderstorms between 2 and 10 p.m. on both Wednesday and ...