Johnstown Rainfall ForecastUnited KingdomWLWrexhamJohnstownToday 14 Sep95%Mon 15 Sep50%Tue 16 Sep90%Wed 17 Sep85%Thu 18 Sep5%Fri 19 Sep45%Johnstown rainfall forecast issued yesterday at 7:36 pm. Next forecast at approx. 9:36 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 WillyWeather+ to remove ads