Sarnau (Honddu Isaf) Rainfall ForecastUnited KingdomWLPowysSarnau (Honddu Isaf)Today 1 May90%Thu 2 May65%Fri 3 May50%Sat 4 May30%Sun 5 May50%Mon 6 May45%Sarnau (Honddu Isaf) rainfall forecast issued today at 1:37 am. Next forecast at approx. 3:37 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet an account to remove ads