Matt Friedlein with the National Weather Service said shaded areas, like grassy parks or under tree canopies, can be up to 10 ...

Record-high minimum temperatures, in which temperatures don't drop in the nighttime hours, are likely across much of the U.S.

When summer turns up the heat, cities can start to feel like an oven, as buildings and pavement trap the sun's warmth and ...

Cities are seeking low-cost ways to ease the heat island effect. Researchers found benefits and trade-offs in two popular ...

The risks of heat are only growing thanks to lasting heat waves, extreme nighttime temperatures and unusual humidity, like ...

A heat dome​ is trapping over 90 million Americans in extreme temperatures this week with the National Weather Service​ ...

Dozens of extreme heat advisories and flash flood warnings across the central and southeast U.S. have been issued by the National Weather Service.

The extreme heat is returning to Massachusetts and the National Weather Service has issued a heat advisory because of how hot it will feel through Monday.

See detailed maps of the latest temperature forecasts across Europe.

Europe heatwave latest: Extreme heat grips the continent as temperatures soar to 42C - Multiple countries on the continent are facing temperatures of 40C or above, with warnings for extreme heat ...

The hottest places on hot days in New York City are the acres of asphalt at LaGuardia and John F. Kennedy Airports, according to a heat map published by the City Council.