Langstone Harbour - Long Island Rainfall ForecastUnited KingdomSEHampshireLangstone Harbour - Long IslandToday 30 Mar30%Tue 31 Mar5%Wed 1 Apr10%Thu 2 Apr10%Fri 3 Apr10%Langstone Harbour - Long Island rainfall forecast issued today at 7:31 pm. Next forecast at approx. 9:31 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time National RadarNational SatelliteNational SynopticGet an account to remove ads