Derwent Reservoir Rainfall ForecastUnited KingdomNEDurhamDerwent ReservoirToday 21 May15%Thu 22 May5%Fri 23 May50%Sat 24 May50%Sun 25 May45%Mon 26 May35%Tue 27 May35%Derwent Reservoir rainfall forecast issued today at 7:37 am. Next forecast at approx. 9:37 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