Chesapeake Bay - Patapsco River Entrance UV IndexUnited StatesMDBaltimore CountyChesapeake Bay - Patapsco River Entrance1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAChesapeake Bay - Patapsco River Entrance UV forecast issued today at 3:18 pm. Next forecast at approx. 3:18 pm.Get WillyWeather+ to remove ads