Mukwonago, located in southeastern Wisconsin, experiences a humid continental climate. Summers are warm with temperatures averaging around 80°F, while winters are cold with temperatures often dropping below freezing, averaging around 20°F. The region typically receives moderate rainfall throughout the year, ranging from 2 to 4 inches per month.

Hydrologically, Mukwonago is situated near the Mukwonago River and Phantom Lake, offering picturesque water bodies for outdoor enthusiasts. The Mukwonago River provides opportunities for fishing, canoeing, and kayaking, while Phantom Lake offers boating and swimming activities.

Outdoor recreation in Mukwonago is plentiful. The area boasts several parks and trails, such as Mukwonago County Park and Glacier Drumlin State Trail, which are ideal for hiking, biking, and picnicking. In addition, the nearby Kettle Moraine State Forest provides opportunities for camping, horseback riding, and wildlife observation.

Overall, Mukwonago's climate supports a range of outdoor activities throughout the year, and its hydrological features offer diverse recreational opportunities for nature lovers and adventure seekers.