Johnstown Rainfall ForecastUnited KingdomWLWrexhamJohnstownToday 9 May5%Fri 10 May5%Sat 11 May5%Sun 12 May45%Mon 13 May80%Tue 14 May40%Wed 15 May35%Johnstown rainfall forecast issued today at 1:38 pm. Next forecast at approx. 3:38 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Clee Hill (Shropshire) RadarNational SatelliteNational SynopticGet an account to remove ads