Portsmouth Harbour - Port Solent Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Port SolentToday 20 Mar5%Sat 21 MarNo RainSun 22 Mar5%Mon 23 Mar5%Tue 24 Mar45%Wed 25 Mar45%Portsmouth Harbour - Port Solent rainfall forecast issued yesterday at 6:36 pm. Next forecast at approx. 8:36 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