North Star Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in North Star Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in North Star Lake 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 | 18.0°C | 19.5°C | |
| SEP 15 | 17.9°C | 19.5°C | |
| SEP 16 | 17.7°C | 19.5°C | |
| SEP 17 | 17.4°C | 19.5°C | |
| SEP 18 | 17.7°C | 19.5°C | |
| SEP 19 | 17.6°C | 19.5°C | |
| SEP 20 | 16.9°C | 19.5°C | |
| SEP 21 | 17.5°C | 19.5°C | |
| SEP 22 | 19.5°C | 17.6°C | |
| SEP 23 | 19.5°C | 17.7°C | |
| SEP 24 | 19.5°C | 17.8°C | |
| SEP 25 | 19.5°C | 17.9°C | |
| SEP 26 | 19.5°C | 18.0°C | |
| SEP 27 | 19.5°C | 18.1°C | |
| SEP 28 | 19.5°C | 18.2°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 | 1°C | 4°C |
| February | 0°C | 2°C | 4°C |
| March | 0°C | 2°C | 4°C |
| April | 1°C | 6°C | 10°C |
| May | 4°C | 12°C | 19°C |
| June | 14°C | 21°C | 27°C |
| July | 20°C | 24°C | 27°C |
| August | 21°C | 25°C | 28°C |
| September | 16°C | 20°C | 23°C |
| October | 6°C | 12°C | 17°C |
| November | 3°C | 7°C | 11°C |
| December | 0°C | 3°C | 6°C |
North Star Lake: Water Temperature by Location
North Star Lake: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
North Star Lake, like many small inland lakes in Minnesota, experiences pronounced seasonal shifts in water temperature. After ice-out in spring, surface temperatures rapidly climb from near freezing to roughly 40–60°F (4–15°C) through late spring. By midsummer the warmest surface readings are commonly in the 70s°F, about 21–26°C, and shallow sheltered bays can occasionally reach the low 80s°F (26–28°C) on hot weeks. Below the thermocline the deeper water generally remains much cooler year-round, often near 39°F (4°C), while winter conditions bring ice and surface temperatures close to freezing, with water just under the ice slightly above 32°F (0°C).
Swimming is typically possible and popular during the warmer months when surface temperatures are comfortable, but it is governed by local access, safety conditions and water-quality advisories. Cold water in spring and after prolonged cloudy weather can cause cold-shock risk even when air temperatures feel mild, and blue-green algae, bacterial advisories or boat traffic can make swimming inadvisable at times. For safe recreation, check current local advisories, be mindful of sudden depth changes and cold pockets of water, and use life jackets or supervision where appropriate.