Metonga Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Metonga Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Metonga Lake today is 20.8°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 |
|---|---|---|---|
| AUG 25 | 20.8°C | 24.0°C | |
| AUG 26 | 20.8°C | 24.0°C | |
| AUG 27 | 20.8°C | 24.0°C | |
| AUG 28 | 21.0°C | 24.0°C | |
| AUG 29 | 22.0°C | 24.0°C | |
| AUG 30 | 22.0°C | 24.0°C | |
| AUG 31 | 20.7°C | 24.0°C | |
| SEP 1 | 20.8°C | 16.1°C | |
| SEP 2 | 16.1°C | 20.6°C | |
| SEP 3 | 16.1°C | 20.3°C | |
| SEP 4 | 16.1°C | 20.1°C | |
| SEP 5 | 16.1°C | 19.9°C | |
| SEP 6 | 16.1°C | 19.6°C | |
| SEP 7 | 16.1°C | 19.4°C | |
| SEP 8 | 16.1°C | 19.2°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 | 3°C | 5°C |
| February | 0°C | 3°C | 5°C |
| March | 0°C | 3°C | 5°C |
| April | 1°C | 5°C | 9°C |
| May | 5°C | 11°C | 16°C |
| June | 13°C | 17°C | 21°C |
| July | 18°C | 23°C | 27°C |
| August | 18°C | 24°C | 30°C |
| September | 14°C | 16°C | 19°C |
| October | 9°C | 13°C | 17°C |
| November | 4°C | 9°C | 13°C |
| December | 0°C | 3°C | 6°C |
Metonga Lake: Water Temperature by Location
Metonga Lake: Weather Forecast
September 1
September 2
September 3
September 4
September 5
September 6
Location & Local Information
Metonga Lake experiences a typical northern Wisconsin seasonal cycle of water temperatures. In spring, as ice melts and the lake mixes, surface temperatures commonly range from about 40–60°F (4–16°C). By summer the surface warms most years into the mid-70s to low 80s°F (24–28°C) on warm, sunny days, though cooler weather or wind can keep temperatures in the 60s°F (15–20°C). In early fall the water usually drops through the 50s–60s°F (10–18°C) as air temperatures cool, and by late fall it approaches near-freezing conditions. During winter the lake is typically ice-covered and water just under the ice sits around 32°F (0°C), so surface swimming is not feasible.
Swimming in Metonga Lake is commonly permitted and practiced during the warmer months because the shoreline is accessible and summertime surface temperatures are comfortable for recreational use. Local conditions such as wind, recent rainfall, or algal blooms can affect water quality and safety, so swimmers should pay attention to posted advisories or guidance from local authorities. Cold spring and fall water can pose hypothermia risk for prolonged exposure, and ice conditions in winter make swimming unsafe except in organized, supervised events with appropriate precautions.