Sometimes the temperature outside feels warmer than it is, and there's a reason. Here's a breakdown of the heat index.

Watch out for the heat index. If the feels-like temperature is 103 degrees or higher, the National Weather Service says people outside for long periods or doing physical activity in the heat are ...

When you hear the term “heat index” in the forecast, it’s usually paired with a much higher number than the actual ...

The heat index, or apparent temperature, ... The National Weather Service provides a heat index chart and calculator to determine local apparent temperatures.

Heat Index calculator. Here's a chart to help you find out what the heat index is. ... The symptoms of heat stroke include a body temperature above 103 degrees, a throbbing headache, ...

The heat index is what the temperature feels like to the human body when relative ... Extreme danger: When the heat index is 125 degrees or higher, heat stroke is likely. Here's a chart to help you ...

Sometimes the temperature outside feels warmer than it is, and there's a reason. Here's a breakdown of the heat index.