McCann Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in McCann Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in McCann Lake today is 21.4°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 | 19.8°C | 19.0°C | |
| JUN 24 | 20.0°C | 19.0°C | |
| JUN 25 | 20.0°C | 19.0°C | |
| JUN 26 | 20.0°C | 19.0°C | |
| JUN 27 | 20.4°C | 19.0°C | |
| JUN 28 | 21.1°C | 19.0°C | |
| JUN 29 | 21.5°C | 19.0°C | |
| JUN 30 | 21.5°C | 19.0°C | |
| JUL 1 | 23.5°C | 21.5°C | |
| JUL 2 | 23.5°C | 21.6°C | |
| JUL 3 | 23.5°C | 21.7°C | |
| JUL 4 | 23.5°C | 21.8°C | |
| JUL 5 | 23.5°C | 21.9°C | |
| JUL 6 | 23.5°C | 22.0°C | |
| JUL 7 | 23.5°C | 22.1°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 | 6°C |
| March | 0°C | 3°C | 6°C |
| April | 1°C | 7°C | 13°C |
| May | 9°C | 14°C | 20°C |
| June | 16°C | 19°C | 22°C |
| July | 20°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 | 2°C | 5°C |
McCann Lake: Water Temperature by Location
McCann Lake: Weather Forecast
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Location & Local Information
McCann Lake in Wisconsin experiences the kinds of seasonal water temperatures typical of inland northern lakes. In spring, as ice melts and the water mixes, surface temperatures commonly range from roughly 40–55°F (4–13°C). By early summer the surface warms into the 60s °F (16–21°C), and peak summer often brings comfortable swimming temperatures of about 70–80°F (21–27°C) in shallower bays, though deeper water can remain several degrees cooler. In autumn the surface cools back through the 50s–60s °F (10–16°C) before freezing; winter surface temperatures near and beneath the ice are around 32–39°F (0–4°C).
Swimming at McCann Lake is generally possible and popular in the warm months when surface temperatures are in the 70s °F (low to mid‑20s °C), provided there are no local restrictions. Whether swimming is allowed depends on shoreline ownership, posted signage, and current water‑quality conditions; some public access points permit swimming while private shorelines do not. Swimmers should be mindful that temperature varies with depth and location, and that hazards such as underwater vegetation, sudden drop‑offs, and cyanobacterial (blue‑green algae) blooms can make swimming unsafe. Checking local advisories and observing posted rules is the best way to determine when and where swimming is appropriate.