[thecoacher]

I know the team my son play's for when it come's to Heat Index and if they will practice or not come's from the High School Coach and AD, which come and measure the temp on field an air temp. If the high school ain't practicing neither is the middle school. They spent a few hot day's in the ac gym with just helmets on.

Same in our county. The middle school coach has a heat index gauge, but he works closely with the high school coach.