Jennings, Missouri is a small city located in St. Louis County. The climate in Jennings is classified as humid continental, experiencing hot summers and cold winters. Summers are typically warm and humid, with temperatures ranging from the 80s to 90s Fahrenheit. Winters are cold, with temperatures often dropping below freezing and occasional snowfall.

The hydrology constituents in Jennings are primarily influenced by the Mississippi River, which is located nearby. The river not only provides a scenic view but also offers fishing opportunities for residents and visitors.

For outdoor recreation, Jennings offers several parks and green spaces. The Jennings Station Road Nature Preserve is a popular destination, providing walking trails and a serene environment for nature enthusiasts. Jennings also has athletic fields and playgrounds where residents can engage in various outdoor activities.

Overall, Jennings, Missouri offers a diverse climate, with hot summers and cold winters. The presence of the Mississippi River and the abundance of parks and green spaces make it a suitable location for outdoor recreation and activities.