Pennsylvania is expected to have 37 days of 90-degree temperatures in a year by mid-century, up from an average of 5.

New Yorkers are bracing for a double whammy of a strong, "severe" storm followed by a heat advisory the following day. ...

Sunday’s card was rescheduled to Friday and an additional race day was set for Friday, Aug. 8 at the Henderson, Ky. track ...

After several mild summer weather days, the excessive heat has returned. Additionally, severe weather could be a factor for ...

Much of the U.S. is under extreme heat warnings or advisories while New York, Philadelphia and Washington could feel like 100 degrees or more.

The one government agency that still reaches nearly every American daily — undeterred by rain, sleet, snow or even gloom of night — turns 250 on Saturday.

Late Friday afternoon, the mercury at Philadelphia International Airport hit a scorching 98 degrees — beating the all-time record for the hottest temperature there on a July 25. The previous record of ...

Chief NFL spokesman Brian McCarthy told CNN on Friday that the players would be fined one-and-a-half times the amount of the ...

Around 100 million people are under heat alerts Friday, from coastal Maine to South Carolina and across much of the Midwest ...

An extreme heat warning remains in effect across the Philadelphia region Friday as heat index values soar above 105 degrees, ...

With extreme heat warnings in effect across major U.S. cities, officials urge residents to prioritize safety and hydration ...

High heat and humidity push the feels-like temperatures to the 100s during Friday afternoon across the Susquehanna Valley.