Transportation networks could experience disruptions as well, since extreme temperatures can affect rail infrastructure and overhead power systems, leading to slower train service.

The number of 90-degree days this summer is expected to be near or above average in Boston, New York City, and Philadelphia.

Recent weather trends suggest some World Cup host cities will face more outdoor heat stress than others and this chart shows where the burden is highest.

With matches in 16 cities across the US, Mexico and Canada, players and fans face an array of weather-related challenges

Transportation networks could experience disruptions as well, since extreme temperatures can affect rail infrastructure and overhead power systems, leading to slower train service.