Langstone Harbour - Sinah Lake Rainfall ForecastUnited KingdomSEHampshireLangstone Harbour - Sinah LakeToday 18 Oct10%Sun 19 Oct95%Mon 20 Oct65%Tue 21 Oct30%Wed 22 Oct85%Thu 23 Oct40%Fri 24 Oct10%Langstone Harbour - Sinah Lake rainfall forecast issued today at 7:36 am. Next forecast at approx. 9:36 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