Watford Gap Rainfall ForecastUnited KingdomEMNorthamptonshireWatford GapToday 3 Jul5%Fri 4 Jul15%Sat 5 Jul20%Sun 6 Jul20%Mon 7 Jul10%Tue 8 Jul5%Wed 9 JulNo RainWatford Gap rainfall forecast issued today at 1:38 pm. Next forecast at approx. 3:38 am.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