Knebworth Rainfall ForecastUnited KingdomEEHertfordshireKnebworthToday 18 Aug85%Wed 19 Aug15%Thu 20 Aug60%Fri 21 Aug15%Sat 22 Aug10%Sun 23 Aug5%Mon 24 Aug10%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Knebworth rainfall forecast issued today at 1:09 pm. Next forecast at approx. 3:09 am. Rainfall Rainfall AccumulationChenies (Hertfordshire) RadarGet WillyWeather+ to remove ads