July 16, 2013
A young boy cools off in the water from a playground sprinkler in the Brooklyn borough of New York. Temperatures are set to top out in the mid-90s degrees Fahrenheit through Thursday in New York City, Philadelphia and Washington, D.C., with heat index values that measure humidity reaching into the upper-90s and low-100s.
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The northeastern United States sweltered on Tuesday in a scorching summer heat wave, complete with stagnant, sticky air and no winds for relief, forecasters said.