Chicagoans are stepping up to help one another during another heat wave in the city. The temperature reached 94 degrees ...

Northeast Ohio is about to crank up the heat, with dangerous conditions expected Thursday as both temperatures and humidity ...

Thursday: A slight chance of showers and thunderstorms after 2 p.m. Sunny, with a high near 94. Heat index values as high as ...

A heat advisory goes into effect Thursday for parts of Connecticut where heat index values will soar past 100 degrees on ...

Temperatures will soar to the upper 80s and low 90s Thursday as dew points climb in many areas, making the air feel thick and ...

Multiple states are under extreme heat warnings, advisories or watches on July 23, according to the National Weather Service.

Central Pennsylvania is bracing for a significant heat wave Thursday and Friday, with temperatures climbing into the 80s and ...

With heat index values expected to top 110 degrees, Knox County residents are urged to take precautions. Here's where to find ...

Palmetto State faces sweltering heat with indexes up to 111°F. Stay safe with precautions and stay updated with News19 WLTX.

How is the heat index calculated, and why is it more important than the air temperature during some heat waves?

OEM volunteers fan out across the city whenever the heat index hits 105°, bringing cold water and compassion to those with nowhere to stay cool.

Temperatures in Milwaukee could reach as high as 94 degrees July 23 with a heat index of 105 degrees, and the heat is likely to stick around tomorrow. The National Weather Service forecasts a high in ...