Lake Benton — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Benton, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Benton today is 17.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 |
|---|---|---|---|
| SEP 14 | 19.8°C | 20.7°C | |
| SEP 15 | 19.3°C | 20.7°C | |
| SEP 16 | 19.1°C | 20.7°C | |
| SEP 17 | 18.0°C | 20.7°C | |
| SEP 18 | 17.1°C | 20.7°C | |
| SEP 19 | 17.5°C | 20.7°C | |
| SEP 20 | 17.6°C | 20.7°C | |
| SEP 21 | 17.5°C | 20.7°C | |
| SEP 22 | 20.7°C | 17.7°C | |
| SEP 23 | 20.7°C | 17.8°C | |
| SEP 24 | 20.7°C | 18.0°C | |
| SEP 25 | 20.7°C | 18.1°C | |
| SEP 26 | 20.7°C | 18.3°C | |
| SEP 27 | 20.7°C | 18.5°C | |
| SEP 28 | 20.7°C | 18.6°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 | 6°C | 12°C |
| February | 0°C | 8°C | 15°C |
| March | 1°C | 9°C | 17°C |
| April | 2°C | 11°C | 20°C |
| May | 7°C | 15°C | 22°C |
| June | 16°C | 20°C | 23°C |
| July | 17°C | 22°C | 28°C |
| August | 20°C | 24°C | 28°C |
| September | 17°C | 21°C | 25°C |
| October | 5°C | 12°C | 19°C |
| November | 3°C | 7°C | 10°C |
| December | 0°C | 6°C | 11°C |
Lake Benton: Water Temperature by Location
Lake Benton: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Lake Benton, a shallow prairie lake in southwestern Minnesota, experiences a clear seasonal pattern in water temperature. In winter the surface typically approaches freezing and often freezes over, hovering around 32°F (0°C) or slightly lower under ice. Spring warming brings surface temperatures into the 40s and 50s°F (roughly 4–15°C) as ice melts and the lake stratifies. During summer the upper water commonly reaches the 70s°F, often between about 68–80°F (20–27°C) on warm days, while deeper or cloudy periods can keep parts of the lake cooler. In autumn the surface cools back into the 50s and 60s°F (10–20°C) as the lake releases summer heat and moves toward turnover.
Swimming in Lake Benton is generally permitted and used recreationally during the warmer months because there are public access points and shorelines managed for recreation. Practical considerations determine when it’s appropriate: water that is in the 70s°F (around 21–27°C) is comfortable for most swimmers, whereas spring and late-season temperatures can feel cold and increase hypothermia risk. Ice cover and formal advisories for water quality or blue‑green algae can temporarily restrict swimming, so visitors should follow posted guidance and local safety recommendations before entering the water.