Groes-wen Rainfall ForecastUnited KingdomWLCaerphillyGroes-wenToday 17 Oct5%Sun 18 Oct80%Mon 19 Oct50%Tue 20 Oct45%Wed 21 Oct55%Thu 22 Oct85%Fri 23 Oct40%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Groes-wen rainfall forecast issued today at 7:08 pm. Next forecast at approx. 9:08 am. Rainfall Rainfall AccumulationCobbacombe Cross (Devon) RadarGet WillyWeather+ to remove ads