Sinclair Slough Rainfall ForecastUnited StatesNDStutsman CountySinclair SloughToday 19 AprNo RainSun 20 Apr5%Mon 21 Apr5%Tue 22 Apr85%Wed 23 Apr10%Thu 24 Apr35%Fri 25 Apr25%Sinclair Slough 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 Bismarck RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads