New Holstein, Wisconsin experiences a humid continental climate characterized by four distinct seasons. Summers are warm with average temperatures ranging from 70 to 80 degrees Fahrenheit, while winters are cold with temperatures often dropping below freezing. Precipitation is distributed evenly throughout the year, with both rain and snowfall.

Located near the Sheboygan River, New Holstein benefits from its hydrological constituents. The river provides opportunities for water-based activities such as fishing, kayaking, and boating. Additionally, the area is surrounded by numerous lakes and ponds, offering further opportunities for outdoor recreation.

Outdoor enthusiasts can also explore the nearby Kettle Moraine State Forest, which offers hiking and biking trails, camping sites, and wildlife viewing. The area is known for its picturesque scenery, making it a popular destination for nature lovers.