Langstone Harbour - Sinah Lake Rainfall ForecastUnited KingdomSEHampshireLangstone Harbour - Sinah LakeToday 18 Jan50%Mon 19 Jan50%Tue 20 Jan50%Wed 21 Jan45%Thu 22 Jan50%Fri 23 Jan50%Sat 24 Jan15%Langstone Harbour - Sinah Lake rainfall forecast issued today at 12:36 pm. Next forecast at approx. 2:36 am.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