Little Rock Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Little Rock Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Little Rock Lake today is 19.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 | 17.6°C | 17.0°C | |
| JUN 4 | 17.5°C | 17.0°C | |
| JUN 5 | 17.8°C | 17.0°C | |
| JUN 6 | 18.4°C | 17.0°C | |
| JUN 7 | 18.9°C | 17.0°C | |
| JUN 8 | 18.9°C | 17.0°C | |
| JUN 10 | 19.9°C | 17.0°C | |
| JUN 11 | 17.0°C | 19.8°C | |
| JUN 12 | 17.0°C | 19.6°C | |
| JUN 13 | 17.0°C | 19.5°C | |
| JUN 14 | 17.0°C | 19.3°C | |
| JUN 15 | 17.0°C | 19.2°C | |
| JUN 16 | 17.0°C | 19.0°C | |
| JUN 17 | 17.0°C | 18.9°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 | 7°C | 12°C |
| February | 1°C | 8°C | 15°C |
| March | 1°C | 9°C | 17°C |
| April | 2°C | 11°C | 20°C |
| May | 9°C | 15°C | 21°C |
| June | 12°C | 17°C | 22°C |
| July | 17°C | 21°C | 24°C |
| August | 20°C | 24°C | 28°C |
| September | 18°C | 20°C | 22°C |
| October | 5°C | 12°C | 19°C |
| November | 2°C | 8°C | 12°C |
| December | 1°C | 4°C | 7°C |
Little Rock Lake: Water Temperature by Location
Little Rock Lake: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Little Rock Lake in Minnesota follows the familiar seasonal temperature pattern of shallow northern lakes. During summer the surface typically warms to roughly 65–80°F (18–27°C), making most afternoons comfortable for recreational swimming; deeper water remains much cooler and can stay near 39°F (4°C) because of freshwater density. Spring sees a rapid warming from about 35–55°F (2–13°C) as ice melts and the lake mixed, while fall brings cooling surface temperatures in the range of roughly 45–60°F (7–16°C) before turnover. In winter the lake usually freezes over and surface temperatures are at or just below freezing (32°F/0°C), with unfrozen depths tending toward 39°F (4°C) under the ice.
Swimming at Little Rock Lake is generally possible during the open-water season when public access points are available and there are no health or safety advisories. Whether swimming is advisable depends on local conditions: summer temperatures often permit comfortable bathing, but authorities may restrict access for reasons such as high bacterial levels, harmful algal blooms, submerged hazards, or ice cover in colder months. Water temperature, weather, and posted guidance from local health or parks departments determine when swimming is safe, and swimmers should heed signs and advisories to avoid hypothermia, contamination, or unsafe conditions.