Mermet Rainfall ForecastUnited StatesILMassac CountyMermetToday 18 Apr5%Sat 19 Apr50%Sun 20 Apr55%Mon 21 Apr75%Tue 22 Apr5%Wed 23 Apr20%Thu 24 Apr60%Mermet rainfall forecast issued today at 8:05 pm. Next forecast at approx. 10:05 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