Heat-index readings on Wednesday and Thursday could top 100 degrees in Winston-Salem, Greensboro and other areas in the region.

The Heat Risk Index uses overnight low temperatures in its calculation of human risk to more accurately determine the level of danger posed by the high heat.

Officials extended a heat advisory in southwest Michigan through June 27. The heat index shows temperatures ranging up to 100 degrees.

We are well into our first heat wave of the season, and it has been brutally hot. The heat index has been a very important number to pay attention to, and that will continue as we head into the ...

Heat continues but a front will provide some relief this weekend before more showers and thunderstorms.

What’s the heat index where you work? As temperatures soar, Maryland employers are adjusting to the first workplace heat rules in the East.

Heat index chart measuring the air temperatures and relative humidity to produce an apparent temperature.

The National Weather Service in Raleigh issued an Extreme Heat Warning for Tuesday and Wednesday, saying that the heat index could reach as high as 115° in parts of our area. Some raw data shows ...

What is the "average" peak heat index in our area? Just using Raleigh, we can see how this 112° compares to the long-term average and to the record.

Residents can use the NWS Heat Index Calculator to calculate what the heat index is locally. In addition, there is the Heat Index Chart with a wider range of temperatures and humidity percentages.

Extreme danger: When the heat index is 125 degrees or higher, heat stroke is likely. Heat index calculator Here's a chart to help you find out what the heat index is.

Excessive heat is dangerous. Here's what to know before it strikes South Jersey this summer.