Biron Flowage Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Biron Flowage Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Biron Flowage Lake today is 18.2°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 |
|---|---|---|---|
| SEP 14 | 19.8°C | 18.7°C | |
| SEP 15 | 19.5°C | 18.7°C | |
| SEP 16 | 19.5°C | 18.7°C | |
| SEP 17 | 19.8°C | 18.7°C | |
| SEP 18 | 19.0°C | 18.7°C | |
| SEP 19 | 19.3°C | 18.7°C | |
| SEP 20 | 19.4°C | 18.7°C | |
| SEP 21 | 18.2°C | 18.7°C | |
| SEP 22 | 18.7°C | 18.2°C | |
| SEP 23 | 18.7°C | 18.3°C | |
| SEP 24 | 18.7°C | 18.3°C | |
| SEP 25 | 18.7°C | 18.3°C | |
| SEP 26 | 18.7°C | 18.3°C | |
| SEP 27 | 18.7°C | 18.4°C | |
| SEP 28 | 18.7°C | 18.4°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 | 3°C |
| February | 0°C | 1°C | 3°C |
| March | 0°C | 2°C | 4°C |
| April | 1°C | 8°C | 16°C |
| May | 8°C | 14°C | 21°C |
| June | 16°C | 19°C | 23°C |
| July | 19°C | 24°C | 29°C |
| August | 19°C | 25°C | 30°C |
| September | 14°C | 19°C | 24°C |
| October | 9°C | 14°C | 18°C |
| November | 3°C | 9°C | 14°C |
| December | 0°C | 2°C | 4°C |
Biron Flowage Lake: Water Temperature by Location
Biron Flowage Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Biron Flowage typically follows the seasonal temperature patterns of midwestern flowages. In spring (April–June) surface temperatures usually rise from roughly 45–65°F (7–18°C) as snowmelt and cool rains transition into warmer weather. By summer (June–August) surface water commonly reaches about 70–80°F (21–27°C), and during heat spells can climb into the low-to-mid 80s°F (27–29°C); deeper water remains cooler because of stratification. In early fall (September–October) temperatures fall back into the 50–70°F range (10–21°C) before late-season cooling leads to near-freezing conditions under ice in winter (around 32–39°F / 0–4°C) when the flowage is ice-covered.
Swimming is a common recreational use on flowage waters and people do swim in Biron Flowage where there is public access and shoreline suitable for bathing. It is generally allowed, but users should heed posted signs, boat traffic, water-quality advisories and natural hazards such as drop-offs, submerged wood, or strong currents near channel connections. Summer surface temperatures make casual swimming comfortable, while spring and fall water can feel cold and increase the risk of cold-water shock; winter swimming is unsafe without specialized ice-safety precautions. Observing local guidance and common-sense safety practices ensures the best experience.