Harahan Rainfall ForecastUnited StatesLAJefferson ParishHarahanToday 20 Apr15%Mon 21 Apr55%Tue 22 Apr55%Wed 23 Apr40%Thu 24 Apr20%Fri 25 Apr5%Sat 26 Apr10%Harahan rainfall forecast issued today at 2:04 pm. Next forecast at approx. 4:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time New Orleans is currently offline. Showing backup Mobile.National SatelliteNational SynopticGet WillyWeather+ to remove ads