Some of the hottest weather so far this summer is forecast for Friday, and that is affecting kickoff times for some of the area’s high school football games that night. You should check with your local high school to confirm whether a time change, in most cases, from 7 to 8pm, will take place for this Friday night’s games. National Weather Service meteorologist Justin Lane said it looks as if “we’ll have to plow through one of the hottest days of the year on Friday, when upper 90s are expected to be common across the Piedmont.” The forecast high Friday is 98 degrees. The hottest temperature so far this summer in Charlotte was 96, on August 14th. In addition to the heat, forecasters say humidity levels will be high enough to create heat indices of up to 105 degrees.