Langstone Harbour Rainfall ForecastUnited KingdomSEHampshireLangstone HarbourToday 17 Sep35%Thu 18 Sep45%Fri 19 Sep15%Sat 20 Sep40%Sun 21 Sep40%Mon 22 Sep15%Tue 23 Sep35%Langstone Harbour rainfall forecast issued today at 7:38 am. Next forecast at approx. 9:38 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Dean Hill (Wiltshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads