Blackwater Rainfall ForecastUnited KingdomSEHampshireBlackwaterToday 10 Jul5%Sat 11 JulNo RainSun 12 JulNo RainMon 13 Jul10%Tue 14 Jul10%Wed 15 Jul5%Blackwater rainfall forecast issued today at 1:36 am. Next forecast at approx. 3:36 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Rainfall Rainfall AccumulationChenies (Hertfordshire) RadarGet WillyWeather+ to remove ads