Langstone Harbour - Chalkdock Lake Rainfall ForecastUnited KingdomSEHampshireLangstone Harbour - Chalkdock LakeToday 17 Mar10%Wed 18 MarNo RainThu 19 MarNo RainFri 20 Mar5%Sat 21 Mar5%Sun 22 Mar5%Langstone Harbour - Chalkdock Lake rainfall forecast issued yesterday at 6:37 pm. Next forecast at approx. 8:37 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