The city remains engulfed in a heat dome — and scientists and researchers in Chicago who pay close attention to heat have warned that more extreme weather like this is expected going forward.

It's scorching this week in parts of the country. What's the highest heat index ever recorded? Here's what to know.

Ohio records - All-time highest temperature: 113° F (Gallipolis (near) on July 21, 1934) - All-time lowest temperature: -39° ...