Lake Mahopac Rainfall ForecastUnited StatesNYPutnam CountyLake MahopacToday 19 Apr30%Sun 20 Apr25%Mon 21 Apr5%Tue 22 Apr50%Wed 23 Apr5%Thu 24 Apr5%Fri 25 Apr15%Lake Mahopac rainfall forecast issued today at 8:04 am. Next forecast at approx. 10:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Upton RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads