Portsmouth Harbour - Burrow Island Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Burrow IslandToday 13 Aug10%Thu 14 AugNo RainFri 15 AugNo RainSat 16 Aug5%Sun 17 AugNo RainMon 18 Aug35%Tue 19 Aug30%Portsmouth Harbour - Burrow Island rainfall forecast issued today at 7:37 am. Next forecast at approx. 9:37 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