Dorchester Rainfall ForecastUnited KingdomSWDorsetDorchesterToday 14 JulNo RainTue 15 Jul45%Wed 16 Jul55%Thu 17 Jul30%Fri 18 Jul40%Sat 19 Jul55%Sun 20 Jul35%Dorchester rainfall forecast issued today at 7:36 pm. Next forecast at approx. 9:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Dean Hill (Wiltshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads