Mozier, Illinois is a small rural community located in Calhoun County, situated along the banks of the Mississippi River. The climate in Mozier is classified as humid continental, characterized by warm summers and cold winters. The average temperature ranges from around 25°F (-4°C) in winter to approximately 85°F (29°C) in summer. Precipitation is evenly distributed throughout the year, with an average of about 40 inches (101 cm) annually.

Hydrologically, Mozier benefits from its proximity to the Mississippi River. The river serves as a vital resource for the community, providing recreational opportunities as well as supporting local agriculture and wildlife. The river's water quality is monitored, and constituents such as sediment, nutrients, and pollutants are regularly assessed to ensure its health.

Outdoor recreation in Mozier is abundant. The Mississippi River offers opportunities for boating, fishing, and birdwatching. The nearby Calhoun County State Fish & Wildlife Area provides additional outdoor activities such as hunting, hiking, and camping. The surrounding natural landscapes, including forests and wetlands, offer scenic beauty and opportunities for nature enthusiasts. Mozier is an excellent destination for those seeking outdoor adventures and a tranquil escape from city life.