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 3:17 pm. Next forecast at approx. 3:17 pm.Get WillyWeather+ to remove ads