The heat index is a measurement that considers both air temperature and humidity to determine how hot it actually feels to ...

Some hot days feel even worse thanks to high humidity, trapped heat and dew points. Cities are especially vulnerable. By Nazaneen Ghaffar Nazaneen Ghaffar is a reporter on The Times’s weather team. It ...

The heat index combines temperature and humidity to show what the air actually feels like — and understanding it could keep ...

'Feels like' temperatures are just another name for the heat index. Here's how to understand the calculations as temperatures and humidity soar.

JD Rudd has your weather update!