Sheepscot Bay - Lower Mark Island Swell ForecastUnited StatesMELincoln CountySheepscot Bay - Lower Mark Island1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIISheepscot Bay - Lower Mark Island swell forecast issued today at 6:48 am. Next forecast at approx. 6:48 am.Get WillyWeather+ to remove ads