Watford Rainfall ForecastUnited KingdomEEHertfordshireWatfordToday 31 Aug50%Mon 1 Sep60%Tue 2 Sep65%Wed 3 Sep35%Thu 4 Sep40%Fri 5 Sep10%Watford 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 Chenies (Hertfordshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads