Potomac River - Kingcopsico Point UV IndexUnited StatesVAWestmoreland CountyPotomac River - Kingcopsico Point1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAPotomac River - Kingcopsico Point UV forecast issued yesterday at 3:17 pm. Next forecast at approx. 3:17 pm.Get WillyWeather+ to remove ads