Des Moines River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Des Moines River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Des Moines River today is 21°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 23 | 20.4°C | 19.0°C | |
| JUN 24 | 20.5°C | 19.0°C | |
| JUN 25 | 20.5°C | 19.0°C | |
| JUN 26 | 20.6°C | 19.0°C | |
| JUN 27 | 19.7°C | 19.0°C | |
| JUN 28 | 20.0°C | 19.0°C | |
| JUN 29 | 20.2°C | 19.0°C | |
| JUN 30 | 21.0°C | 19.0°C | |
| JUL 1 | 22.5°C | 21.1°C | |
| JUL 2 | 22.5°C | 21.2°C | |
| JUL 3 | 22.5°C | 21.2°C | |
| JUL 4 | 22.5°C | 21.3°C | |
| JUL 5 | 22.5°C | 21.4°C | |
| JUL 6 | 22.5°C | 21.5°C | |
| JUL 7 | 22.5°C | 21.5°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 | 0°C | 5°C | 9°C |
| February | 0°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 | 24°C |
| July | 17°C | 23°C | 28°C |
| August | 17°C | 23°C | 28°C |
| September | 11°C | 17°C | 23°C |
| October | 8°C | 16°C | 23°C |
| November | 3°C | 8°C | 16°C |
| December | 1°C | 5°C | 8°C |
Des Moines River: Water Temperature by Location
Des Moines River: Weather Forecast
July 1
July 2
July 3
July 4
July 5
Location & Local Information
Source Lake Shetek
• location Murray County, Minnesota
• elevation 1,483 ft (452 m)
Mouth Mississippi River
• location Clark County, Missouri / Lee County, Iowa, near Keokuk, Iowa
• elevation 597 ft (182 m)
Length 525 mi (845 km)
The Des Moines River, which flows through Iowa and parts of southern Minnesota, experiences varying water temperatures depending on the season and location. During spring, as snow melts and rains feed the river, water temperatures tend to stay cool, often between 45°F and 60°F (7°C to 16°C). By summer, especially in the central and southern stretches of the river, water temperatures can rise to 70°F–80°F (21°C–27°C), providing a more comfortable environment for recreational activities like swimming and wading. However, the exact temperature can fluctuate based on recent weather, water flow, and the time of day.
Swimming in the Des Moines River is less common than in other recreational water bodies, mainly due to its strong currents, variable water levels, and occasional issues with water quality. While certain calm stretches may be suitable for wading or cooling off during the summer months, it’s crucial to exercise caution and follow local guidelines or advisories. Many people prefer engaging in other water-based activities like kayaking, fishing, or boating, which are popular along the river’s length, especially in areas with well-maintained access points and parks.