The temperature on any given summer day may be in the 80s or 90s. So why does it feel so much hotter and oppressive at times? That's the heat index doing its thing. Here's how it works: What is the ...

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 ...

If you thought the worst of the summer's sweltering temperatures were behind us, think again. Some schools closed early as the late-August heat wave gripping Ohio brought temperatures not seen in ...

The reason why the humidity makes it feel hotter than the actual temperature is because of our sweat. Our bodies like to stay near 98.6 degrees, so when our body temperature rises sweat is released ...

A temperature of over 100 degrees doesn’t paint the whole picture when it comes to determining how hot it feels. The heat index does. What is the heat index? “It is essentially what temperature feels ...

The heat index, or apparent temperature, combines air temperature and relative humidity to indicate how hot it feels. High humidity slows sweating, the body's natural cooling system, making ...

NASHVILLE, Tenn. (WSMV) - Although the heat index is more widely used, the wet bulb globe temperature has many strengths. Have you ever heard of Wet Bulb Globe Temperature (WBGT)? It’s not a new term, ...