A dangerous heat dome will bring record-breaking temperatures to the eastern US starting this weekend, impacting tens of millions. The National Weather Service forecasts a level 4 extreme heat risk, with temperatures 15 degrees above normal, potentially reaching 110 degrees with humidity. Cities like New York, Washington D.C., and Boston are expected to see record highs. This early heatwave, coinciding with the summer solstice, is a preview of potentially hotter weeks to come in July and August, highlighting the deadly impact of extreme heat.

Prepared by Olivia Bennett and reviewed by editorial team.