Packer Johns Cabin State Park Rainfall ForecastUnited StatesIDAdams CountyPacker Johns Cabin State ParkToday 19 Apr20%Sun 20 Apr25%Mon 21 Apr35%Tue 22 Apr5%Wed 23 Apr5%Thu 24 Apr10%Fri 25 Apr35%Packer Johns Cabin State Park rainfall forecast issued today at 4:04 pm. Next forecast at approx. 6:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Boise RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads