Grimwith Reservoir Rainfall ForecastUnited KingdomYHNorth YorkshireGrimwith ReservoirToday 5 Jan10%Tue 6 Jan90%Wed 7 Jan55%Thu 8 Jan30%Fri 9 Jan30%Sat 10 Jan65%Grimwith Reservoir rainfall forecast issued today at 12:36 am. Next forecast at approx. 2:36 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Hameldon Hill (Lancashire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads