Great Casterton Rainfall ForecastUnited KingdomEMRutlandGreat CastertonToday 12 May50%Wed 13 May90%Thu 14 May45%Fri 15 May15%Sat 16 May15%Sun 17 May35%Mon 18 May15%Great Casterton rainfall forecast issued today at 7:37 pm. Next forecast at approx. 9:37 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