Myrtle Beach (Grande Dunes Blvd) UV IndexUnited StatesSCHorry CountyMyrtle Beach (Grande Dunes Blvd)1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAMyrtle Beach (Grande Dunes Blvd) UV forecast issued yesterday at 2:17 pm. Next forecast at approx. 2:17 pm.Get WillyWeather+ to remove ads