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

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

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?

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

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

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

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 ...

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.

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