COLUMBIA, S.C. — A News19 Weather Impact Alert has been issued for the Palmetto State, not for rainfall this time, but for an extended stretch of dangerously high temperatures starting this weekend ...

Temperatures are climbing into the 90s and heat index values into the 100s, prompting a heat advisory for the region. Scorching temperatures combined with the high humidity are expected Thursday, July ...

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 ...

"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 ...

Conditions are hot and humid in Michigan and getting hotter as the week goes on. Forecasters often refer to the heat index as a way to measure the "feels like" temperature. Here's a look at what that ...

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 ...