Tens of millions of people across the Midwest and East endured dangerously hot temperatures again on Sunday as a rare June ...

Pittsburgh prepares for extreme heat with temperatures potentially breaking records and a heat advisory in effect.

PITTSBURGH — Our first summer heat wave kicked off today, and it will last through at least the middle of the week.

Pittsburgh faces Extreme Heat Warning with index values above 100F, and a potential for record highs and severe weather.

A massive heat dome enveloping much of the central and eastern U.S. this week will lead to levels of heat and humidity not seen in June in many years, warn AccuWeather meteorologists. High ...