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 24.3°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 4 | 25.1°C | 24.5°C | |
| AUG 5 | 25.1°C | 24.5°C | |
| AUG 6 | 24.9°C | 24.5°C | |
| AUG 7 | 25.0°C | 24.5°C | |
| AUG 8 | 25.2°C | 24.5°C | |
| AUG 9 | 25.2°C | 24.5°C | |
| AUG 10 | 24.5°C | 24.5°C | |
| AUG 11 | 24.0°C | 24.5°C | |
| AUG 12 | 24.5°C | 24.3°C | |
| AUG 13 | 24.5°C | 24.3°C | |
| AUG 14 | 24.5°C | 24.3°C | |
| AUG 15 | 24.5°C | 24.3°C | |
| AUG 16 | 24.5°C | 24.4°C | |
| AUG 17 | 24.5°C | 24.4°C | |
| AUG 18 | 24.5°C | 24.4°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 | 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
August 12
August 13
August 14
August 15
August 16
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.