Updated

Philadelphia and Atlantic City, N.J., are among the major Northeast cities breaking temperature records during a brief December heat wave.

The National Weather Service says both cities reached 67 degrees on Saturday afternoon. That broke Atlantic City's previous mark of 63 degrees, set in 2011, and bested Philadelphia's previous high of 66 degrees, set in 1895.

The temperature rose to 68 in Wilmington, Del., beating the previous mark of 65, set in 1895.

Sunday is supposed to be an even warmer day in the region, with temperatures expected to top 70.