Calshot Castle Rainfall ForecastUnited KingdomSEHampshireCalshot CastleToday 25 Sep20%Sat 26 Sep10%Sun 27 Sep35%Mon 28 Sep15%Tue 29 Sep20%Wed 30 Sep35%1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Calshot Castle rainfall forecast issued today at 1:08 am. Next forecast at approx. 3:08 pm. Rainfall Rainfall AccumulationDean Hill (Wiltshire) RadarGet WillyWeather+ to remove ads