Today may or may not be the 17th straight day of temperatures of 100 degrees or higher, putting this year’s heat wave into a tie for eighth place since records have been kept in North Texas. There was also a 17-day run in August of 1956. However, the National Weather Service says today’s high might reach “only” 99 degrees, so it’s wait-and-see to find out if we hit the century mark again. Sunday’s high at DFW Airport hit 103 degrees jus a little after 3 p.m. That’s pretty warm, of course, but not warm enough to reach the record for August 15th. The hottest August 15th ever was in 1951 when the mercury topped out at 107.