Semilong Rainfall ForecastUnited KingdomEMNorthamptonshireSemilongToday 8 Sep95%Wed 9 Sep5%Thu 10 Sep60%Fri 11 Sep45%Sat 12 Sep20%Sun 13 Sep15%Mon 14 Sep10%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Semilong rainfall forecast issued today at 7:08 am. Next forecast at approx. 9:08 pm. Rainfall Rainfall AccumulationChenies (Hertfordshire) RadarGet WillyWeather+ to remove ads