health
Heatwave and high humidity to blast much of US: ‘impactful to anyone’
Forecasters expect days of high temperatures in central and eastern US before Fourth of July and World Cup festivities

TL;DR
- A major heatwave is expected across the central and eastern US for the upcoming week, with temperatures rising ahead of the Fourth of July holiday.
- High humidity will accompany the heat, leading to heat indexes of 100-110F, and potentially as high as 115F, posing risks to everyone.
- Millions of Americans are already experiencing heat risk conditions, with the affected area and temperature intensity expected to grow.
- Several cities could see their highest temperatures of the year, impacting outdoor celebrations and potentially leading to heat-related illnesses.
- Extreme dry and windy conditions are also promoting rapid wildfire spread in the west, where three firefighters have already died.