Portsmouth Harbour - Salterns Quay Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Salterns QuayToday 28 Mar15%Sun 29 Mar60%Mon 30 Mar10%Tue 31 Mar10%Wed 1 Apr15%Thu 2 Apr15%Fri 3 Apr30%Portsmouth Harbour - Salterns Quay rainfall forecast issued today at 12:36 pm. Next forecast at approx. 3:36 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