Missouri — Water Temperature Today and Throughout the Year

Water Temperature in Lakes and Rivers

Popular Lakes

Popular Rivers

Popular Places

Water Temperature and Swimming Overview

Water Temperature Trends

Missouri, with its extensive network of rivers and lakes, offers a wide variety of water temperatures depending on the time of year. In the summer months, the water temperatures in the state’s largest lakes, such as Lake of the Ozarks and Table Rock Lake, are ideal for swimming and boating. During peak summer, water temperatures in these lakes can rise to between 75°F and 85°F (24°C to 29°C), providing a warm and inviting environment for recreational activities. The warm waters are perfect for activities like fishing, kayaking, and watersports. These lakes are particularly popular with tourists and locals alike during the hotter months of June through August.

During the spring and fall, temperatures in Missouri's rivers and lakes tend to cool down, especially as the weather changes. Rivers such as the Missouri River and the Gasconade River often see water temperatures ranging between 50°F and 65°F (10°C to 18°C) during these transitional months. While still too cold for comfortable swimming, the cooler waters are ideal for anglers, as many fish species, such as bass and catfish, are more active in the cooler temperatures. This is also a popular time for kayaking, canoeing, and hiking along riverbanks, as the weather is generally mild, and the water temperature is manageable for short excursions.

In the winter months, Missouri’s rivers and lakes experience significant drops in temperature. The water in lakes like Truman Lake and the Missouri River can drop to near 40°F to 45°F (4°C to 7°C) in late fall and winter. This makes swimming and other water activities unsuitable for most people, although it is still possible to enjoy winter fishing or even ice fishing in the northern parts of the state where the lakes freeze. However, most of Missouri’s rivers, such as the Meramec River, remain open during the winter due to their flow, and the water stays close to freezing, hovering around 32°F (0°C). The cold temperatures in winter provide a stark contrast to the summer warmth, but they also allow for quiet, peaceful outdoor experiences, especially for those interested in winter fishing or observing nature in the colder months.