Johnstown Rainfall ForecastUnited KingdomWLWrexhamJohnstownToday 18 Aug85%Wed 19 Aug40%Thu 20 Aug65%Fri 21 Aug10%Sat 22 Aug5%Sun 23 Aug5%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Johnstown rainfall forecast issued today at 1:08 am. Next forecast at approx. 3:08 pm. Rainfall Rainfall AccumulationClee Hill (Shropshire) RadarGet WillyWeather+ to remove ads