Minnewashta Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Minnewashta Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Minnewashta Lake today is 21.4°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 | 15.9°C | 19.5°C | |
| JUN 4 | 16.4°C | 19.5°C | |
| JUN 5 | 16.3°C | 19.5°C | |
| JUN 6 | 16.4°C | 19.5°C | |
| JUN 7 | 21.0°C | 19.5°C | |
| JUN 8 | 21.0°C | 19.5°C | |
| JUN 10 | 21.4°C | 19.5°C | |
| JUN 11 | 19.5°C | 21.3°C | |
| JUN 12 | 19.5°C | 21.2°C | |
| JUN 13 | 19.5°C | 21.1°C | |
| JUN 14 | 19.5°C | 21.0°C | |
| JUN 15 | 19.5°C | 20.9°C | |
| JUN 16 | 19.5°C | 20.8°C | |
| JUN 17 | 19.5°C | 20.7°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 | 2°C | 4°C |
| February | 0°C | 3°C | 5°C |
| March | 0°C | 3°C | 6°C |
| April | 5°C | 10°C | 15°C |
| May | 11°C | 16°C | 21°C |
| June | 15°C | 20°C | 23°C |
| July | 21°C | 23°C | 26°C |
| August | 23°C | 26°C | 29°C |
| September | 19°C | 22°C | 24°C |
| October | 8°C | 14°C | 20°C |
| November | 5°C | 8°C | 11°C |
| December | 0°C | 3°C | 5°C |
Minnewashta Lake: Water Temperature by Location
Minnewashta Lake: Weather Forecast
June 9
June 10
June 11
June 12
June 13
Location & Local Information
There is not a widely known Minnewashta Lake in Iowa; the better-known Lake Minnewashta is located in the Minneapolis–Saint Paul region of Minnesota. For that kind of Midwestern glacial lake, water temperatures follow a clear seasonal pattern. During winter months the surface is near freezing, about 32°F (0°C) under ice. In spring the surface gradually warms from roughly 40–55°F (4–13°C) as ice melts and runoff continues. By late spring and early summer temperatures commonly reach 55–70°F (13–21°C). Peak summer surface temperatures often range from about 70–80°F (21–27°C), and on hot, stagnant summers portions can approach the mid-80s°F (around 29°C). In autumn the lake cools again, moving through 60–45°F (16–7°C) as the season progresses.
Swimming is generally possible during the ice-free months, but whether it is allowed at any specific shoreline depends on local park rules, posted signs and water-quality advisories. Many regional lakes offer informal shore or park swimming rather than lifeguarded beaches, so visitors should observe posted closures for algae blooms or bacterial contamination and use caution: colder waters below roughly 60°F (15°C) can be uncomfortable and increase hypothermia risk, while warmer, stagnant water can bring bacterial or algal hazards. Always follow local authorities’ guidance and check current conditions before entering the water.