Portsmouth Harbour - Port Solent Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Port SolentToday 20 Jan95%Wed 21 Jan95%Thu 22 Jan60%Fri 23 Jan60%Sat 24 Jan10%Sun 25 Jan15%Portsmouth Harbour - Port Solent rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 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