Dry air and a ridge of high pressure will keep most areas dry on Sunday, with a few quick downpours possible in the early afternoon. However, with the loss of the rain comes a gain in heat. Heat indices today will surpass 100 and climb as high as 108 in some locations in North Florida. The National Weather Service has issued a heat advisory for all locations north of I-10. While this excludes Alachua and Marion counties, residents there are still urged to take appropriate cautions to protect themselves from the heat. Drink plenty of water, give yourself plenty of beaks in the shade and wear light-colored, loose fitting clothing.