Great Wass Island - Black Duck Cove UV IndexUnited StatesMEWashington CountyGreat Wass Island - Black Duck Cove1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAGreat Wass Island - Black Duck Cove UV forecast issued today at 3:18 pm. Next forecast at approx. 3:18 pm. UV IndexGet WillyWeather+ to remove ads