This East Coast page contains weather information for all states from Florida to Maine. It will have marine forecasts, hurricane information, and beach forecasts (in the summer) in addition to traditional weather forecasts.
http://weather.gov/okx National Weather Service New York, NY
http://weather.gov/akq National Weather Service Wakefield, VA
http://weather.gov/phi National Weather Service Philadephia, PA / Mount Holly, NJ
http://weather.gov/mfl National Weather Service Miami, FL
http://weather.gov/lwx National Weather Service Baltimore, MD / Washington, DC
http://weather.gov/mlb National Weather Service Melbourne, FL