Cylinder is a small town located in north-central Iowa with a humid continental climate. Summers are warm and humid while winters are cold with occasional snowfall. The town is situated in the Des Moines River watershed, with a few small creeks and tributaries flowing into the river. Agricultural runoff is a major source of pollution in the watershed, leading to high levels of nutrients and sediment in the water. Outdoor recreation opportunities in the area include fishing and boating on the nearby Des Moines River, as well as hunting and hiking in the surrounding forests and prairies. The town also has several parks and recreational areas for residents and visitors to enjoy.