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 ...

CHICOPEE, Mass. (WWLP) – Western Massachusetts temperatures will reach into the 90s again Tuesday with heat index values over 100 degrees. When talking about heat and humidity, we use a term called ...

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 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 the ...

It looks like the sizzling temperatures Jacksonville experienced over the weekend were just preheating the oven. The real scorcher starts today — and will continue through Tuesday. The National ...

COLUMBIA, S.C. — A News19 Weather Impact Alert has been issued for the Palmetto State, not for rainfall this time, but for an extended stretch of dangerously high temperatures starting this weekend ...

NORFOLK, Va. — "Feels-like" temperatures could reach triple digits on Tuesday, prompting a heat advisory from the National Weather Service. When combined with high humidity, the heat index — or what ...

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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 ...