Potomac River - Quantico Creek Entrance UV IndexUnited StatesVAPrince William CountyPotomac River - Quantico Creek Entrance1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAPotomac River - Quantico Creek Entrance UV forecast issued yesterday at 3:18 pm. Next forecast at approx. 3:18 pm. UV IndexGet WillyWeather+ to remove ads