BOCA RATON, Fla. — Residents of Boca Raton can expect a protracted stretch of sweltering conditions and atmospheric instability from Friday, Aug. 7, through Friday, Aug. 14. By Saturday, Aug. 8, rain risks drop to 25%, allowing temperatures to climb to 93°F (RealFeel 108°F) under alternating clouds and sun. The coastal alert expires Saturday morning, but heat concerns sharpen as the Max UV Index peaks at an extreme 12.0. Max UV Index peaks at 11.0. The Max UV Index rebounds to an extreme 11.0.