Portsmouth Harbour - Fareham Marina Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Fareham MarinaToday 17 Jul10%Fri 18 Jul60%Sat 19 Jul55%Sun 20 Jul40%Mon 21 Jul60%Tue 22 Jul20%Portsmouth Harbour - Fareham Marina 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