Long Island Rainfall ForecastUnited KingdomSWCornwallLong IslandToday 7 Mar50%Sun 8 Mar45%Mon 9 Mar60%Tue 10 Mar95%Wed 11 Mar55%Thu 12 Mar80%Fri 13 Mar70%Long Island rainfall forecast issued today at 6:35 pm. Next forecast at approx. 8:35 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Predannack (Cornwall) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads