Weather Forecast Myrtle Beach, SC Last Update: 12:24am Mar 10, 2010 EST Today Tomorrow Friday Saturday Sunday Monday Tuesday Rain Showers Hi 68°F Lo 53°F Rain Showers Hi 66°F Lo 56°F PoP 60% Chance Thunderstorms Hi 70°F Lo 53°F PoP 40% Chance Thunderstorms Hi 68°F Lo 45°F PoP 40% Partly Sunny Hi 63°F Lo 45°F PoP 20% Partly Sunny Hi 65°F Lo 44°F Partly Sunny Hi 64°F Weather data provided by the National Weather Service