Upminster Rainfall ForecastUnited KingdomSEGreater LondonUpminsterToday 17 Jul15%Fri 18 Jul45%Sat 19 Jul80%Sun 20 Jul35%Mon 21 Jul60%Tue 22 Jul35%Upminster 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 Thurnham (Kent) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads