Portsmouth Harbour - Wicor Lake Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Wicor LakeToday 5 Sep5%Sat 6 Sep5%Sun 7 Sep50%Mon 8 Sep35%Tue 9 Sep40%Wed 10 Sep35%Portsmouth Harbour - Wicor Lake rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 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