River Forth - Forth Viaduct Rainfall ForecastUnited KingdomTAStirlingRiver Forth - Forth ViaductToday 20 May55%Thu 21 May90%Fri 22 May45%Sat 23 May15%Sun 24 May15%Mon 25 May10%River Forth - Forth Viaduct 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 Holehead (Stirling) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads