Potomac River - Cherryfield Point UV IndexUnited StatesMDSt Marys CountyPotomac River - Cherryfield Point1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAPotomac River - Cherryfield Point UV forecast issued yesterday at 2:17 pm. Next forecast at approx. 2:17 pm.Get WillyWeather+ to remove ads