Winchester Rainfall ForecastUnited KingdomSEHampshireWinchesterToday 4 Mar15%Thu 5 Mar10%Fri 6 Mar40%Sat 7 Mar15%Sun 8 Mar10%Mon 9 Mar30%Tue 10 Mar15%Winchester rainfall forecast issued today at 12:35 pm. Next forecast at approx. 2:35 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