Severe and extreme heat-related impacts are expected across a wide swath of the U.S. this weekend and next week.

The best temperature to set your air conditioner at can depend on several factors, including comfort preferences, energy ...

Sauna-like conditions on Friday are threatening to break records in major Northeast cities during summer’s hottest month ...

How is the heat index calculated, and why is it more important than the air temperature during some heat waves?

At least 130 million people from Texas to Maine are under alert for dangerous heat and humidity over the next few days.

According to the report, you should set your thermostat to 78 degrees Fahrenheit when you’re home, 85 degrees when you’re at ...

When it comes to doing laundry, there are many rules to follow — yet one of the most important ones is what you set your ...

A Heat Advisory is in effect from noon to 9 pm Thursday. Expect heat index values up to 107 with temperatures of 99 to 103.

Late Friday afternoon, the mercury at Philadelphia International Airport hit a scorching 98 degrees — beating the all-time record for the hottest temperature there on a July 25. The previous record of ...

How low should you set your thermostat for as record-breaking heat sweeps over the country? Here's what experts and other ...