Portsmouth Harbour - Cams Bay Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Cams BayToday 27 Jun5%Sat 28 Jun10%Sun 29 Jun10%Mon 30 Jun5%Tue 1 Jul5%Wed 2 Jul35%Thu 3 Jul5%Portsmouth Harbour - Cams Bay rainfall forecast issued today at 7:37 pm. Next forecast at approx. 9:37 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