A hazardous weather alert is in effect for Northeast Ohio, including the Cleveland and Akron areas, as strong to severe ...

An 'extreme heat watch' is in effect as the heat index is expected to skyrocket. Here's timing, updated heat index values, more.

As a late-summer heat wave hits Ohio, use this heat index chart to see how hot it feels outside.

An 'extreme heat watch' is in effect as the heat index is expected to skyrocket. Here's timing, updated heat index values, more.

What does the heat index chart look like? To get an idea of how air temperatures and humidity levels produce apparent temperatures, here is the NWS' heat index chart. (these readings apply to ...

Excessive heat is dangerous. Here's what to know before it strikes Delaware this summer.

Residents can use the NWS Heat Index Calculator to calculate what the heat index is locally. In addition, there is the Heat Index Chart with a wider range of temperatures and humidity percentages.

The heat index chart that the National Weather Service uses measures what temperatures will feel like in the shade. In direct sunlight, the agency warns heat index values can increase by up to 15 ...

Take action when you see symptoms of heat exhaustion and heat stroke.

Extreme danger: When the heat index is 125 degrees or higher, heat stroke is likely. Here's a chart to help you find out what the heat index is. You can also use this heat index calculator. Certain ...

The National Oceanic and Atmospheric Administration says people should start exercising “caution” when the heat index reaches ...

Hot, humid weather is expected this week in Illinois, with high heat indexes and scattered storms likely. Here's the forecast.