Today will be the last day of well above normal temperatures in the ongoing spell of hot weather. High temperatures in the mid to upper 90s are expected, with heat index topping out in the 100-110 degree range. The sprawling heat wave high to our north will start to weaken and retreat late today, as low pressure moves in from east of Florida. So, an abrupt increase in thunderstorm coverage will occur this afternoon and tonight, marking a break in the heat. By Friday, near normal temperatures are expected. Of course, never leave children or pets in a parked vehicle when the weather is warm.