McAllen Rainfall ForecastUnited StatesTXHidalgo CountyMcAllenToday 18 AprNo RainSat 19 AprNo RainSun 20 Apr35%Mon 21 Apr40%Tue 22 Apr40%Wed 23 Apr30%Thu 24 Apr15%McAllen rainfall forecast issued today at 10:04 pm. Next forecast at approx. 12:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Brownsville RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads