The National Oceanic and Atmospheric Administration says people should start exercising “caution” when the heat index reaches ...

Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

A family of 11, including six children, was rescued off the Holbert Trail on South Mountain in Phoenix during a hot summer ...

Nearly 160 million people are under heat alerts from eastern Texas to Maine, as temperatures are forecast to be as much as 20 ...

As triple-digit temperatures hit the East Coast, individuals with a mental illness taking psychiatric medications could be at ...

Extreme heat is making air pollution worse, scientists say. And President Trump’s regulatory rollbacks could drive air ...

Find out about the Europe heatwave and its impacts, including record temperatures and travel advisories for tourists.

Portugal is expected to see highs of up to 109 degrees Fahrenheit. Parts of Spain, France, Italy and Greece are also bracing ...

RICHMOND, Va. — The dangerous heat that's been blanketing our region is sending more people to emergency rooms. Doctors say pregnant women face special risks during these extreme temperatures.

Jonathan Reynolds told the PA news agency ‘behavioural changes’ like drinking plenty of water and staying protected in the ...

PHOENIX (AZFamily) — A very hot start to the week is expected across Arizona, with First Alert Weather Days declared for extreme heat both today and tomorrow. Download the First Alert Weather App Here ...

Providence, RI is under an extreme heat warning for the second consecutive day, with temperatures expected to reach 102 degrees and a heat index of 110. The extreme heat warning advises residents to ...