Washington Rainfall ForecastUnited KingdomSEWest SussexWashingtonToday 15 SepNo RainWed 16 Sep50%Thu 17 Sep55%Fri 18 Sep45%Sat 19 Sep35%Sun 20 Sep10%Mon 21 Sep5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Washington rainfall forecast issued today at 7:08 pm. Next forecast at approx. 9:08 am. Rainfall Rainfall AccumulationThurnham (Kent) RadarGet WillyWeather+ to remove ads