Solomon Slough Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Solomon Slough Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Solomon Slough Lake today is 12.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 |
|---|---|---|---|
| OCT 5 | 13.9°C | 11.5°C | |
| OCT 6 | 13.0°C | 11.5°C | |
| OCT 7 | 12.5°C | 11.5°C | |
| OCT 8 | 12.8°C | 11.5°C | |
| OCT 9 | 12.6°C | 11.5°C | |
| OCT 10 | 12.3°C | 11.5°C | |
| OCT 11 | 11.2°C | 11.5°C | |
| OCT 12 | 11.9°C | 11.5°C | |
| OCT 13 | 11.5°C | 12.4°C | |
| OCT 14 | 11.5°C | 12.3°C | |
| OCT 15 | 11.5°C | 12.3°C | |
| OCT 16 | 11.5°C | 12.2°C | |
| OCT 17 | 11.5°C | 12.2°C | |
| OCT 18 | 11.5°C | 12.1°C | |
| OCT 19 | 11.5°C | 12.1°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 | 1°C | 8°C | 15°C |
| March | 0°C | 9°C | 17°C |
| April | 2°C | 11°C | 20°C |
| May | 7°C | 14°C | 21°C |
| June | 13°C | 18°C | 22°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 | 18°C |
| November | 3°C | 7°C | 10°C |
| December | 1°C | 5°C | 8°C |
Solomon Slough Lake: Water Temperature by Location
Solomon Slough Lake: Weather Forecast
October 13
October 14
October 15
October 16
October 17
October 18
Location & Local Information
Lake of Solomon Slough in South Dakota is a shallow prairie waterbody whose surface temperatures follow the region’s seasonal pattern. In spring, waters are cold, often between about 40 and 60 °F (4–15 °C) as runoff and snowmelt dominate. By summer the slough’s sheltered bays and shallow shelves commonly warm to roughly 68–82 °F (20–28 °C), and in very warm, low-flow periods small areas can reach into the mid-80s °F (around 29–30 °C). Autumn brings cooling back toward the 50–65 °F range (10–18 °C), and in winter the surface usually approaches freezing, often ice-covered at or below 32 °F (0 °C).
Swimming at Lake of Solomon Slough is generally possible during the warm months where public access exists, but it is not the same as a managed municipal beach. Recreational swimming is often allowed unless specifically posted closed, yet swimmers should be mindful of safety: there are typically no lifeguards, water clarity and depth can be variable, submerged vegetation and debris are common, and shallow warm zones can encourage algal blooms that make swimming unsafe. Cold spring temperatures also raise the risk of cold-water shock. Visitors are advised to confirm local access and any advisories before entering the water and to use caution when conditions are uncertain.