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 ...

The chart is a grid where you can find the heat index temperature by looking at the air temperature and relative humidity. For example, the NWS says if it's 96 outside and the humidity is 65%, the ...

The chart is a grid where you can find the heat index temperature by looking at the air temperature and relative humidity. For example, the NWS says if it's 96 outside and the humidity is 65%, the ...

For example, the NWS says if it's 96 outside and the humidity is 65%, the heat index temperature is 121 degrees. That falls in the orange zone of the chart, indicating a dangerous temperature.

The chart is a grid where you can find the heat index temperature by looking at the air temperature and relative humidity. For example, the NWS says if it's 96 outside and the humidity is 65%, the ...