River Forth - Forth Viaduct Rainfall ForecastUnited KingdomTAStirlingRiver Forth - Forth ViaductToday 15 Dec15%Tue 16 Dec95%Wed 17 Dec95%Thu 18 Dec50%Fri 19 Dec25%Sat 20 Dec20%Sun 21 Dec10%River Forth - Forth Viaduct rainfall forecast issued today at 12:39 pm. Next forecast at approx. 2:39 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