Sweltering heat and extreme UV levels will precede afternoon storms in Boca Raton, with temperatures running above historical averages. BOCA RATON, Fla. — Residents of Boca Raton can expect a classic, intense mid-August weather pattern on Wednesday, Aug. 12, characterized by oppressive morning heat followed by afternoon thunderstorms. The daytime high is forecasted to reach 94°F—four degrees above the area’s historical average of 90°F—with humidity levels driving the RealFeel® temperature up to 110°F (101°F in the shade). Morning Heat and Extreme UV ExposureThe morning will begin mostly sunny with a temperature of 93°F and a humidity level of 67%, making the early hours feel closer to 109°F. Subscribe for Weather Alerts: Stay up-to-date with our weather alert service by subscribing here .