With temperatures dancing around the 100-degree mark yesterday afternoon, Warren County High School student Morgan McCormick had an odd idea. She decided to go play tennis.“I was bored and looking for something to do,” said McCormick from the Civic Center tennis courts.With temperatures expected to break 100 degrees the next three days, most local residents will find a different way to be the heat. This will be the hottest weekend of the year with temperatures predicted to be 104 today and Saturday, and 105 degrees Sunday, according to AccuWeather.It’s some of the hottest weather Tennessee has experienced in five years.