Portage Des Sioux is a small town located in St. Charles County, Missouri. It experiences a humid continental climate with hot summers and cold winters. Summers are typically hot and humid, with temperatures often reaching the 90s°F (32°C) and occasional thunderstorms. Winters are cold, with temperatures dropping below freezing, and snowfall is common.

The town is situated along the Missouri River, allowing for various hydrological activities. Boating is a popular recreational activity, with residents and visitors enjoying water skiing, fishing, and leisurely cruises. The river also offers opportunities for kayaking and canoeing.

Portage Des Sioux is home to several parks and outdoor recreational areas. The Riverfront Park provides a scenic view of the Missouri River, with picnic areas and walking trails. The town also hosts an annual Pow Wow, showcasing Native American traditions and dancing.

Additionally, the town's proximity to the Daniel Boone Conservation Area offers hiking, hunting, and wildlife viewing opportunities. Visitors can explore the area's trails and enjoy the natural beauty of the surrounding forests.

Overall, Portage Des Sioux offers residents and visitors a chance to experience outdoor activities in a picturesque setting, making it an attractive destination for nature lovers.