Hirwaun Rainfall ForecastUnited KingdomWLRhondda Cynon TaffHirwaunToday 11 Oct90%Mon 12 Oct95%Tue 13 Oct90%Wed 14 Oct50%Thu 15 Oct75%Fri 16 Oct10%Sat 17 Oct5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Hirwaun rainfall forecast issued today at 1:08 pm. Next forecast at approx. 3:08 am. Rainfall Rainfall AccumulationCrug-y-Gorllwyn (Carmarthenshire) RadarGet WillyWeather+ to remove ads