How air conditioning has changed in Portland since 2021's heat dome

In 2021, a devastating heat wave blanketed the pacific northwest, smashing records. How has AC access changed since then in Portland, one of the major cities affected.

This July 4th could be hottest ever in parts of U.S. Maps show the forecast expected to break records.

Extremely dangerous heat, coupled with humidity, could result in heat index readings of 100 to 115 degrees from the Midwest ...

Why we have so many ways to measure hot weather

Temperatures are skyrocketing for the third straight day across the Eastern US, but there’s at least three different ways to ...

Are you one of the millions of Americans trapped in a 'heat dome?'

Track extreme heat alerts with this interactive map.

Where, when and how bad the Fourth of July heat wave will be, in seven diagrams, charts and maps

The U.S. is looking at an unwelcome birthday gift: a dangerous heat wave arriving ahead of the holiday weekend. Limited time: ...

Across a Scorching Ohio, Residents Endure Breathtaking Heat

The heat wave gripping much of the eastern half of the country over the past few days has been especially intense throughout ...

Heat Wave Spreads East on Wednesday, Putting Millions More at Risk

More than 160 million people are under extreme heat warnings or heat advisories ahead of the Fourth of July weekend.

Timeline maps show how bad the surging heat and humidity levels will get

Boston and New England are now into one of the most intense stretches of extreme, triple-digit heat on record. A massive heat ...

Can AI plan for heat emergencies better than simple rules? It depends

The thermometer reads 95°F (35°C) in Brooklyn, and vulnerable individuals need information to take appropriate action. New York City officials must gather facts quickly to provide updates on cooling ...