Portsmouth Harbour - Cams Bay Rainfall ForecastUnited KingdomSEHampshirePortsmouth Harbour - Cams BayToday 28 Jan40%Wed 29 Jan85%Thu 30 Jan40%Fri 31 Jan45%Sat 1 Feb15%Sun 2 Feb20%Mon 3 Feb15%Portsmouth Harbour - Cams Bay rainfall forecast issued today at 6:38 pm. Next forecast at approx. 8:38 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