Penn Street Rainfall ForecastUnited KingdomSEBuckinghamshirePenn StreetToday 8 AprNo RainThu 9 Apr20%Fri 10 Apr15%Sat 11 Apr45%Sun 12 Apr35%Mon 13 Apr40%Penn Street rainfall forecast issued today at 1:37 am. Next forecast at approx. 3:37 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