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 ...

During the hot, humid summer months, meteorologists often discuss the heat index instead of the actual air temperature. But how is the heat index calculated, and why is it more important than the air ...

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 ...

NEW YORK (PIX11) — It was on the hot side on Monday as temperatures neared 90 degrees across the region. Despite the heat, the dew point temperatures stayed in the 50s, making it feel tolerable. While ...

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 ...

*** Heat Advisory continues until 8 pm for Middle Tennessee. *** Extreme Heat Warning continues until 8 pm for West Tennessee. Dangerous levels of heat and humidity will continue this afternoon and ...

Florida is under a heat advisory with dangerous heat index values expected to reach 110-115 degrees. The heat dome affecting the South may cause record high temperatures and poses extreme heat risks.

If you're planning on going outside today, be extra careful. It's hot out there, like, hot, hot. Heat index advisories have been issued across Florida, as the National Weather Service expects values ...