"It's not the heat, it's the humidity." Actually, it's both, and that's where the National Weather Service's heat index comes in. Also known as the apparent temperature, the heat index is a number ...

Temperatures this week are some of the hottest we have seen the entire year now as we get to the end of July. This is a perfect opportunity to explain what the Heat Index is and how it is all ...

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 ...

Temperature is one of the primary factors in every weather forecast, but when we get into the dog days of summer, it’s just not that simple. We have to use something called the “heat index” to ...

(The Conversation) – Beach trips, cookouts and other outdoor activities are in full swing as summer heats up and the first widespread heat wave of 2025 arrives. For many people, summer is their ...

CHARLESTON, S.C. (WCSC) - High temperatures and humidity produced potentially dangerous heat index values for the third day in a row on Monday. An extreme heat warning for the Lowcountry that went ...

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 Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) For many people, summer is a time for cookouts, beach trips and other outdoor ...