Portsmouth Harbour - Salterns Quay Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Salterns QuayToday 16 May60%Sun 17 May85%Mon 18 May90%Tue 19 May85%Wed 20 May40%Thu 21 May5%Fri 22 May5%Portsmouth Harbour - Salterns Quay rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 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