Lake Winneconne — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Winneconne, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Winneconne today is 18.6°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 | 19.5°C | 19.1°C | |
| SEP 15 | 19.7°C | 19.1°C | |
| SEP 16 | 19.3°C | 19.1°C | |
| SEP 17 | 19.3°C | 19.1°C | |
| SEP 18 | 18.9°C | 19.1°C | |
| SEP 19 | 19.2°C | 19.1°C | |
| SEP 20 | 19.1°C | 19.1°C | |
| SEP 21 | 18.6°C | 19.1°C | |
| SEP 22 | 19.1°C | 18.6°C | |
| SEP 23 | 19.1°C | 18.7°C | |
| SEP 24 | 19.1°C | 18.7°C | |
| SEP 25 | 19.1°C | 18.7°C | |
| SEP 26 | 19.1°C | 18.7°C | |
| SEP 27 | 19.1°C | 18.8°C | |
| SEP 28 | 19.1°C | 18.8°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 | 1°C | 4°C | 6°C |
| March | 1°C | 5°C | 8°C |
| April | 2°C | 7°C | 12°C |
| May | 7°C | 13°C | 20°C |
| June | 16°C | 19°C | 23°C |
| July | 20°C | 25°C | 29°C |
| August | 21°C | 24°C | 27°C |
| September | 15°C | 19°C | 24°C |
| October | 12°C | 15°C | 18°C |
| November | 3°C | 6°C | 9°C |
| December | 0°C | 3°C | 6°C |
Lake Winneconne: Water Temperature by Location
Lake Winneconne: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Lake Winneconne’s surface temperatures follow a typical Midwestern lake pattern. In early spring the water is cold, often from about 32–50°F (0–10°C) as ice melts and runoff cools the shallow bays. By late spring and early summer temperatures usually rise into the mid 60s–70s°F (18–24°C). Peak summer surface readings in July and August commonly range from roughly 70–82°F (21–28°C) in the warmer, sun-exposed areas, though sheltered or deeper spots stay cooler. As air temperatures fall in autumn the lake cools back through the 60s into the 40s°F (16–4°C), and in winter the surface typically approaches freezing with ice cover likely when sustained cold sets in, around 32°F (0°C).
Swimming is generally permitted and popular at public access points and shorelines, but conditions govern whether it is advisable. Authorities may post advisories for harmful algal blooms, bacterial contamination, or unsafe ice; there are also risks from cold-water shock outside peak summer months, submerged vegetation, and boat traffic in the channelized parts of the system. Beaches may not have lifeguards, so users should check local notices about water quality and safety, wear flotation if appropriate, and avoid swimming when temperatures are very low or when an advisory is in effect.