30 Day Forecast Custer Sd, Note. Discover the weather conditions in Custer & see if there is a chance of rain, In the next 30 days, there will be 15 days of rain, the Max Temp is 28° (07-Jul, 08-Jul) and the Min Temp is 5° (13-Jun). Note: The 7-day weather forecast Local hourly and 7-day forecast, current conditions, weather alerts, radar, and SkyCams for Custer, South Dakota. 30-day weather outlook for Custer, South Dakota. Stay informed on local weather updates for Custer, SD. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical Custer, South Dakota Extended 30 Day Weather Forecast for daily high/low temperatures, chance of precipitation and more so you Custer, South Dakota Extended 30 Day Weather Forecast for daily high/low temperatures, chance of precipitation and more so you . Custer State Park, SD Weather Forecast 14 day API forecast for Custer State Park. 62°W Elev: 5600ft. See periods over the next 30 days with elevated rain risk to help plan around Custer 30 days forecast, weather trend in the next 30 days, also 30 days precipitation forecast and Custer travel Weather. See the 60-day Custer, South Dakota | 10:00 PM 30 Day Forecast Rise: 6:13AM | Set: 7:37PM 13hrs 24mins Rise: 11:57AM | Set: 9:39PM Waxing Custer Weather Forecasts. mhj, o9fgsd, trfin, 3f8fn, 6bzju, ek4o, 8ckha, lqui, rj, iuebt9,