River Forth - Forth Viaduct Rainfall ForecastUnited KingdomTAStirlingRiver Forth - Forth ViaductToday 30 DecNo RainWed 31 Dec40%Thu 1 Jan5%Fri 2 JanNo RainSat 3 Jan5%Sun 4 Jan35%Mon 5 Jan35%River Forth - Forth Viaduct rainfall forecast issued today at 6:36 pm. Next forecast at approx. 8:36 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