Cheyenne River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Cheyenne River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Cheyenne River today is 20.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 3 | 20.8°C | 18.5°C | |
| JUN 4 | 20.7°C | 18.5°C | |
| JUN 5 | 20.9°C | 18.5°C | |
| JUN 6 | 21.2°C | 18.5°C | |
| JUN 7 | 21.5°C | 18.5°C | |
| JUN 8 | 21.5°C | 18.5°C | |
| JUN 10 | 20.1°C | 18.5°C | |
| JUN 11 | 18.5°C | 20.0°C | |
| JUN 12 | 18.5°C | 19.9°C | |
| JUN 13 | 18.5°C | 19.9°C | |
| JUN 14 | 18.5°C | 19.8°C | |
| JUN 15 | 18.5°C | 19.7°C | |
| JUN 16 | 18.5°C | 19.6°C | |
| JUN 17 | 18.5°C | 19.5°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 1°C | 5°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 1°C | 6°C | 11°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 22°C |
| July | 17°C | 22°C | 26°C |
| August | 17°C | 21°C | 24°C |
| September | 11°C | 17°C | 22°C |
| October | 8°C | 13°C | 18°C |
| November | 3°C | 8°C | 16°C |
| December | 3°C | 5°C | 8°C |
Cheyenne River: Water Temperature by Location
Cheyenne River: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Source Thunder Basin National Grassland
• location Converse County, Wyoming
Mouth Lake Oahe / Missouri River
• location Ziebach County / Haakon County / Pennington County, South Dakota
Length 295 mi (475 km)
The Cheyenne River, located in the central United States, flows through the states of Wyoming and South Dakota. The water temperature in the river can vary significantly depending on the season and location along its course. During the summer months, especially in July and August, the water temperature can reach a comfortable range for swimming, typically between 18°C (64°F) and 24°C (75°F). This makes the Cheyenne River a pleasant spot for those looking to cool off during the warmer months, particularly in the areas where the river is wider and the current is gentler.
While the Cheyenne River is not as well-known for recreational activities as some of the larger rivers in the U.S., it still offers ample opportunities for swimming, especially for locals and visitors who enjoy more tranquil settings. The river features scenic spots where people can wade into the water or take a relaxing swim. The current can vary depending on the area, with some sections being calm and ideal for leisurely swims, while others may be faster and better suited for kayaking or fishing rather than swimming.
In the colder months, particularly from late fall through early spring, the water temperature in the Cheyenne River drops significantly, making swimming less practical. The river can become quite cold, with temperatures often falling below 10°C (50°F). However, the river remains an important waterway for local wildlife and offers other outdoor activities like fishing, boating, and wildlife viewing throughout the year. While it may not be a top destination for year-round swimming, the Cheyenne River provides a peaceful and refreshing spot for a swim during the warmer months.