The National Weather Service has warned of "searing heat and oppressive humidity that occurs during the 'dog days of summer'.

Dangerous heat is peaking today for millions in the central United States as a heat dome in summer’s hottest month lives up to its reputation — but sauna-like conditions are only just beginning for ...

Here's everything you need to know about the heat wave. 'Rare' and 'dangerous': Record-smashing heat wave to scorch tens of millions. National heat index map: See which states feel hottest.

An intense heat wave is affecting nearly half of the US population, with temperatures reaching 36–39.4 °C (97–103 °F) and heat indices up to 43.3 °C (110 °F) in major cities.

It’s the hottest time of the year in the United States and another heat dome is about to make millions of people feel every bit of it.

Extreme heat is impacting states across the country. ... Extreme heat hits the US: See map of impacted states. Julia Gomez, USA TODAY. Updated June 23, 2025 at 2:20 PM. Copied; ...

Extreme heat is impacting states across the country. ... Extreme heat hits the US: See map of impacted states. Julia Gomez, USA TODAY. Mon, June 23, 2025 at 6:20 PM UTC. 4 min read.