"It's not the heat, it's the humidity." Actually, it's both, and that's where the National Weather Service's heat index comes in. Also known as the apparent temperature, the heat index is a number ...

Temperature is one of the primary factors in every weather forecast, but when we get into the dog days of summer, it’s just not that simple. We have to use something called the “heat index” to ...

ANGELES. WELL, WE ALL KNOW HOW HOT IT GETS HERE DURING THE SUMMER IN SOUTH FLORIDA, BUT IT ACTUALLY FEELS MUCH HOTTER WHEN YOU FACTOR IN THE HUMIDITY. FIRST WARNING METEOROLOGIST BROOKE SILVERING ...

The heat index is a measure of how hot it really feels on your body when relative humidity is factored in with the actual air temperature. Since heat index values were devised for shady, light wind ...