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, or apparent temperature, combines air temperature and humidity to indicate how hot it feels to the body. High humidity slows sweating, the body's natural cooling system, making ...

A heat wave will intensify along the East Coast this week as tropical humidity levels and 100-degree temperatures reach big cities from Boston to Washington. On Sunday, humidity levels were higher in ...

Tonight features an isolated risk for a downpour before midnight. With light winds, recent rainfall and clearing skies, patchy dense fog will form, which could reduce visibilities to below a quarter ...

The heat index, or apparent temperature, combines air temperature and relative humidity to indicate how hot it feels. High humidity slows sweating, the body's natural cooling system, making ...

INDIANAPOLIS (WISH) — A few patches of fog early this morning with a few clouds. More sunshine this afternoon with lower humidity. TODAY: Humidity values begin to drop today. The cold front has moved ...

WASHINGTON — As the first heat wave of the season takes hold, people might be hearing a lot about "feels-like" temperatures. For example, WUSA9 meteorologists say at 4 p.m. Monday, the temperature ...

Summer officially began on Friday and now temperatures are really going to start heating up! An Extreme Heat Watch is in effect, from Sunday morning through Wednesday evening, for southern Centre, ...