Lake Winter — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Winter, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Winter 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 | 19.8°C | 18.0°C | |
| SEP 15 | 18.9°C | 18.0°C | |
| SEP 16 | 18.8°C | 18.0°C | |
| SEP 17 | 19.1°C | 18.0°C | |
| SEP 18 | 18.2°C | 18.0°C | |
| SEP 19 | 18.4°C | 18.0°C | |
| SEP 20 | 18.5°C | 18.0°C | |
| SEP 22 | 18.0°C | 17.5°C | |
| SEP 23 | 18.0°C | 17.6°C | |
| SEP 24 | 18.0°C | 17.6°C | |
| SEP 25 | 18.0°C | 17.6°C | |
| SEP 26 | 18.0°C | 17.6°C | |
| SEP 27 | 18.0°C | 17.7°C | |
| SEP 28 | 18.0°C | 17.7°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 | 3°C |
| February | 0°C | 2°C | 4°C |
| March | 0°C | 2°C | 4°C |
| April | 1°C | 6°C | 12°C |
| May | 7°C | 13°C | 19°C |
| June | 12°C | 17°C | 22°C |
| July | 19°C | 23°C | 27°C |
| August | 18°C | 24°C | 30°C |
| September | 14°C | 18°C | 22°C |
| October | 9°C | 14°C | 18°C |
| November | 2°C | 8°C | 13°C |
| December | 0°C | 2°C | 4°C |
Lake Winter: Water Temperature by Location
Lake Winter: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Lake Winter in Wisconsin, like many small inland lakes in the region, experiences pronounced seasonal shifts in water temperature. During winter the surface freezes and the water beneath is typically near 32–39°F (0–4°C), while spring stratification brings temperatures up into the 39–60°F (4–16°C) range as the lake warms. Summer surface temperatures commonly reach roughly 65–80°F (18–27°C) in warm years, and shallow bays can become warmer still. In autumn the lake cools back toward 50–65°F (10–18°C) as mixing returns and the surface temperature drops ahead of freeze-up.
Swimming is generally permitted in Wisconsin lakes during the warm months, and Lake Winter is typically suitable for recreational swimming when local authorities and property owners allow access and when water-quality conditions are normal. Restrictions or advisories can be posted for blue‑green algal blooms, elevated bacteria counts, or dangerous underwater conditions, so checking current local guidance is important. Early‑season and late‑season swimming carries cold‑water and cold‑shock risks, and winter swimming is unsafe unless ice‑safety protocols are followed for supervised activities; lifeguards are often not present, so personal caution is recommended.