Minong Flowage Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Minong Flowage Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Minong Flowage Lake today is 21.9°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 23 | 20.2°C | 18.5°C | |
| JUN 24 | 20.4°C | 18.5°C | |
| JUN 25 | 20.4°C | 18.5°C | |
| JUN 26 | 20.7°C | 18.5°C | |
| JUN 27 | 20.9°C | 18.5°C | |
| JUN 28 | 20.9°C | 18.5°C | |
| JUN 29 | 21.1°C | 18.5°C | |
| JUN 30 | 21.1°C | 18.5°C | |
| JUL 1 | 24.0°C | 22.0°C | |
| JUL 2 | 24.0°C | 22.1°C | |
| JUL 3 | 24.0°C | 22.2°C | |
| JUL 4 | 24.0°C | 22.3°C | |
| JUL 5 | 24.0°C | 22.4°C | |
| JUL 6 | 24.0°C | 22.5°C | |
| JUL 7 | 24.0°C | 22.6°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 | 2°C | 5°C |
| February | 0°C | 3°C | 6°C |
| March | 0°C | 3°C | 6°C |
| April | 1°C | 6°C | 12°C |
| May | 8°C | 14°C | 19°C |
| June | 15°C | 19°C | 22°C |
| July | 21°C | 24°C | 27°C |
| August | 19°C | 25°C | 30°C |
| September | 14°C | 16°C | 19°C |
| October | 9°C | 14°C | 18°C |
| November | 2°C | 8°C | 13°C |
| December | 0°C | 3°C | 6°C |
Minong Flowage Lake: Water Temperature by Location
Minong Flowage Lake: Weather Forecast
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Location & Local Information
Lake of the Minong Flowage, like many flowages and inland lakes in northern Wisconsin, experiences a strong seasonal cycle in surface water temperature. In spring (April–June) surface readings commonly rise from near freezing after ice-out toward about 45–65°F (7–18°C) as the sun and air warm the upper water column. By midsummer (July–August) surface temperatures typically peak around 68–78°F (20–26°C), though shallow bays and very warm summers can push temperatures a few degrees higher. A cool thermocline and deeper water often remain much colder, so bottom temperatures may stay in the 40s–50s °F (4–12°C) even in summer. In autumn the surface cools again to roughly 50–65°F (10–18°C) before ice forms; winter brings ice cover and near-freezing conditions around 32°F (0°C).
Swimming in the Minong Flowage area is generally permitted and is a common summer activity where public access or shorefront allows, because summertime surface temperatures are typically comfortable for recreation. However, swimmers should be mindful of seasonal hazards: cold water in early summer and deep areas can cause cold-shock, water quality advisories occasionally limit contact, and ice cover makes swimming unsafe in winter. Local signage, current conditions, and basic precautions such as not swimming alone and avoiding boat traffic improve safety.