NEW YORK: A potentially life-threatening heat wave enveloped the eastern third of the United States on Monday impacting nearly 160 million people, with temperatures expected to climb to 104 degrees Fahrenheit (40 degrees Celsius) in the New York metropolitan area. The country’s first significant scorching heat of the year arrived over the weekend and peaks Monday and Tuesday in Washington, Baltimore, Philadelphia and New York City.

Just in time for summer, here comes the heat.

States in the Midwest and Northeast could reach record temperatures in the coming days: Here’s where and when.