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 ...

Multiple states are under extreme heat warnings, advisories or watches on July 23, according to the National Weather Service.

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 ...