A heat wave will blast a large swath of the United States this week. The National Weather Service says temperatures rising ahead of the July 4th holiday will feel hotter because of the high humidity that’s arriving with it.

A heat dome will bring dangerously hot and humid conditions to the eastern half of the United States next week in the region’s most widespread heat wave of the summer so far.

Dangerous heat is expected across large swaths of the U.S. this week, according to the National Weather Service.

A heat wave will blast the eastern United States this week

Sweltering conditions are expected to last through the weekend

A dangerous heatwave is set to engulf large parts of the central and eastern United States from Tuesday through the July 4 holiday weekend. Forecasters have warned of extreme…