Johnston County Airport Rainfall ForecastUnited StatesNCJohnston CountyJohnston County AirportToday 19 AprNo RainSun 20 AprNo RainMon 21 Apr5%Tue 22 Apr35%Wed 23 Apr45%Thu 24 Apr35%Fri 25 Apr30%Johnston County Airport rainfall forecast issued today at 5:04 am. Next forecast at approx. 7:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Raleigh/Durham RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads