High heat and humidity are in full force across the Pittsburgh area for the first full week of summer. Tuesday will be the third 90-degree day in a row, making it officially a heat wave. Sign up for ...

A heat dome occurs when a large area of high pressure in the upper atmosphere acts as a reservoir, trapping heat and humidity ...

The rare June heat wave broke about 20 records on Sunday and is expected to break more on Monday. According to The Weather ...

An expert has tips on how to stay cool during the extreme heat in Pittsburgh. Heat is the leading weather-related cause of ...

Tens of millions of people across the eastern and central U.S. are bracing for more days of extreme temperatures as an ...

The Missouri Department of Transportation says it never truly knows when or where a pavement buckle may occur.

Utility providers across the Midwest and East reported tens of thousands of power outages due to this week’s heat wave.

Temperatures will soar to the 90s the next several days, with the humidity making it feel more like 100 plus degrees.

More than 150 million Americans are under the highest-level extreme heat alerts during a wave of above-average temperatures.

The heat wave has arrived. Temperatures and humidity are climbing as the tri-state heads into an expected record-shattering heat wave, where it could feel like 100 degrees or hotter through Wednesday.

Pittsburgh faces a severe heat wave with possible record temperatures; the National Weather Service issues warnings.

Severe weather is possible Tuesday and Wednesday, along with the extreme heat warning in western Pennsylvania.