Yellowstone River

© By Mike Cline

Yellowstone River Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Yellowstone River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature in Yellowstone River: General Trends and Swimming Opportunities

Source Confluence of North and South Forks
• location Absaroka Range, Wyoming
Mouth Missouri River
• location McKenzie County, near Buford, North Dakota
Length 692 mi (1,114 km)

The Yellowstone River, one of the longest free-flowing rivers in the United States, flows through Yellowstone National Park and offers a variety of outdoor activities, including swimming. Water temperatures in the river can be quite cold, especially in the upper stretches, where snowmelt from the surrounding mountains feeds into the river. During the summer months, the water temperature typically ranges from 45°F to 70°F (7°C to 21°C), but it can still feel chilly due to the river's cold mountain origins, particularly in spring and early summer.

Swimming in the Yellowstone River is generally not recommended in many sections due to the strong currents and cold water temperatures, which can be dangerous for swimmers. However, there are some calmer and more shallow sections of the river, particularly near Yellowstone Lake, where swimming might be more feasible. These areas tend to warm up slightly during the summer, making for a more comfortable experience. Visitors often enjoy wading in these shallower parts or floating down the river in a raft or kayak rather than swimming directly in the water.

The river is more well-known for its opportunities for rafting, fishing, and wildlife watching rather than for swimming. However, the surrounding beauty of Yellowstone National Park, including its geothermal features and wildlife, make the Yellowstone River an essential part of the outdoor experience in the area. For those looking to swim, it's important to always assess the water conditions and choose safe, calm areas away from fast-moving currents or deep sections of the river.

Geographical Location of Yellowstone River

Frequently Asked Questions About Yellowstone River and its Water Temperatures