Great Casterton Rainfall ForecastUnited KingdomEMRutlandGreat CastertonToday 7 Sep5%Mon 8 Sep40%Tue 9 Sep10%Wed 10 Sep50%Thu 11 Sep45%Fri 12 Sep40%Sat 13 Sep55%Great Casterton rainfall forecast issued today at 7:35 am. Next forecast at approx. 9:35 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