NEW YORK (AP) - It's the longest day of the year and it may end up being one of the hottest for many on the Eastern Seaboard as temperatures have climbed toward the high 90s.
Several relatives of high school graduates were treated for heat exhaustion at an outdoor ceremony in North Bergen, N.J. Police say ambulances were on standby at the event, which was held outdoors to accommodate 5,000 people.
The National Weather Service has forecast heat in the mid- to high 90s in cities including Boston, New York, Philadelphia and Washington.
Students preoccupied with thoughts of summer vacation are still in school in New York City, which is under a hot weather advisory. The city's 1.1 million public school students are in session for another week and just 64 percent of classrooms are air-conditioned.
Health officials warn residents to drink water, stay out of the sun and in air conditioning, and to check on elderly neighbors and pets.
Public cooling centers have been set up in dozens of cities for those without air conditioning.
For those in Rhode Island, all regular public buses and trolleys are free today due to anticipated air-quality issues.
