Knockarthur Rainfall ForecastUnited KingdomHEHighlandKnockarthurToday 2 Jun90%Wed 3 Jun85%Thu 4 Jun60%Fri 5 Jun30%Sat 6 Jun35%Sun 7 Jun35%Knockarthur rainfall forecast issued today at 1:35 am. Next forecast at approx. 3:35 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Druim a'Starraig (Isle of Lewis) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads