Oops: It was "101,105 heat index" in McKinney on Thursday

Videocast: Highest heat index readings expected today

Heat index, explained: Will temperatures continue to rise in the U.S.? | Just The FAQs

What's behind recent extreme heat events and record high temperatures

More than 100 million brace for dangerous heat wave across US

Heat Wave Continues Across Southern US As Over 30 Million To Experience 100+ Degree Heat Index

High heat index, 30% chance of rain is in Monday forecast

Scorching temperatures break record as Phoenix residents adapt to heat | USA TODAY

Videocast: Dangerous heat index readings today

What is the heat index and how does it affect us?

Major heat wave sends temperatures skyrocketing in eastern half of U.S.

Dangerous heat index across Central Alabama

Weather Impact: Heat index values as high as 110° today

Heat dome sends temperatures soaring for 73 million in US

Heat index hits triple digits as Chicagoland endures one of the hottest days of the year

Summer Scorcher | Massive Heat Dome Covers Central U.S.

Millions across the U.S. brace for record-breaking temperatures as heat dome travels

New study finds Texas heat index could reach 125 degrees over next 30 years | KVUE

10 Weather: High heat and humidity again today

Dangerously high heat index values on the way this week