(Sioux Falls, SD) — The hot weather and lack of rain are taking their toll on water levels all across South Dakota. This includes the Big Sioux River, as levels continue to decrease since the spring snowmelt. According to USGS data, parts of the Big Sioux River are at their lowest point its seen in a long time. Officials say the solution is the need for more rain. There’s been no moves for any additional water restrictions so far, but Sioux Falls city officials are watching the situation closely.