Great Casterton Rainfall ForecastUnited KingdomEMRutlandGreat CastertonToday 17 Sep100%Thu 18 Sep10%Fri 19 Sep20%Sat 20 Sep50%Sun 21 Sep45%Mon 22 Sep10%Great Casterton 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 Ingham (Lincolnshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads