Boston Rainfall ForecastUnited KingdomEMLincolnshireBostonToday 17 Sep100%Thu 18 Sep55%Fri 19 Sep15%Sat 20 Sep40%Sun 21 Sep40%Mon 22 Sep5%Tue 23 Sep10%Boston rainfall forecast issued today at 1:36 pm. Next forecast at approx. 3:36 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Ingham (Lincolnshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads