Hemel Hempstead Rainfall ForecastUnited KingdomEEHertfordshireHemel HempsteadToday 31 Mar15%Wed 1 Apr15%Thu 2 Apr10%Fri 3 Apr55%Sat 4 Apr20%Sun 5 Apr5%Mon 6 Apr10%Hemel Hempstead rainfall forecast issued today at 1:37 pm. Next forecast at approx. 3:37 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