First Arm Rainfall ForecastUnited StatesTNObion CountyFirst ArmToday 19 Apr30%Sun 20 Apr35%Mon 21 Apr80%Tue 22 Apr5%Wed 23 Apr25%Thu 24 Apr55%Fri 25 Apr65%First Arm rainfall forecast issued today at 5:04 pm. Next forecast at approx. 7:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Paducah RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads