Derwent Reservoir Rainfall ForecastUnited KingdomNEDurhamDerwent ReservoirToday 17 Dec70%Thu 18 Dec95%Fri 19 Dec5%Sat 20 Dec15%Sun 21 Dec30%Mon 22 Dec20%Derwent Reservoir rainfall forecast issued today at 6:36 am. Next forecast at approx. 8:36 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time High Moorsley (Durham) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads