Port Arthur Rainfall ForecastUnited StatesTXJefferson CountyPort ArthurToday 21 Apr55%Tue 22 Apr45%Wed 23 Apr65%Thu 24 Apr30%Fri 25 Apr15%Sat 26 Apr10%Sun 27 Apr5%Port Arthur rainfall forecast issued today at 1:04 am. Next forecast at approx. 3:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Lake Charles RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads