Grainthorpe Rainfall ForecastUnited KingdomEMLincolnshireGrainthorpeToday 24 Apr10%Thu 25 Apr50%Fri 26 Apr35%Sat 27 Apr50%Sun 28 Apr75%Mon 29 Apr5%Tue 30 Apr10%Grainthorpe rainfall forecast issued today at 1:38 pm. Next forecast at approx. 3:38 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Ingham (Lincolnshire) RadarNational SatelliteNational SynopticGet an account to remove ads