Altmar State Forest Rainfall ForecastUnited StatesNYOswego CountyAltmar State ForestToday 19 Apr85%Sun 20 Apr10%Mon 21 Apr50%Tue 22 Apr80%Wed 23 Apr10%Thu 24 Apr15%Fri 25 Apr30%Altmar State Forest rainfall forecast issued today at 4:04 am. Next forecast at approx. 6:04 pm.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Montague RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads