Southport Rainfall ForecastUnited KingdomNWMerseysideSouthportToday 31 Jul40%Sat 1 Aug35%Sun 2 Aug10%Mon 3 Aug40%Tue 4 Aug35%Wed 5 Aug35%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Southport rainfall forecast issued today at 1:08 am. Next forecast at approx. 3:08 pm. Rainfall Rainfall AccumulationHameldon Hill (Lancashire) RadarGet WillyWeather+ to remove ads