With an early summer heat wave baking Michigan and the Midwest, residents may notice two temperatures provided with daily forecasts: actual and apparent — or "feels like" — temperatures based on the ...

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 ...

The heat you feel outside is rising far faster than the temperature on the thermometer. New research from the University of ...

Extreme levels of heat and humidity are forecast to spread across the country over the next two weeks, blanketing the Southwest, Midwest, and East Coast with high temperatures beginning this June 19 ...

Across much of the world, hotter days are no longer arriving alone. The air itself is changing, sometimes turning from dry ...

What does the "heat index" mean and how does it apply to people? -- S.S., Tulsa. The World Almanac and Book of Facts, updated annually, always includes the heat index ...

The heat is on in Alabama, and it's only getting hotter. The heat index is expected to climb sharply from Monday, June 2, through Monday, June 9, pushing conditions into potentially dangerous ...

About 10 years ago, deep in my tennis obsession, I played a one-day singles tournament near my home here in North Carolina. It was a brutal day, like a lot of brutal summer days, but I thought if I ...

National Weather Service observations at Lehigh Valley International Airport show the heat index entered the triple digits Monday morning. What’s that mean? Well, it’s hot, of course — as anyone can ...

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 ...