Water End (Welwyn Hatfield) Rainfall ForecastUnited KingdomEEHertfordshireWater End (Welwyn Hatfield)Today 31 Jul85%Fri 1 Aug5%Sat 2 Aug5%Sun 3 Aug40%Mon 4 Aug45%Tue 5 Aug5%Water End (Welwyn Hatfield) 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