Published on
01/07/2026 - 8:19 GMT+2
A dangerous heatwave is set to intensify and spread across the eastern half of the United States this week, bringing extreme temperatures through to the Fourth of July holiday weekend.
Temperatures ranging from around 32°C to 40°C combined with high humidity will see local heat indices hit up to roughly 46°C, the National Weather Service has said.
The hot spell is likely to peak in the Midwest and Mississippi Valley from Tuesday through Thursday before moving into the Ohio Valley and East Coast on Thursday and into the weekend, according to the agency.
