Whitewater Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Whitewater Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Whitewater Lake today is 24.1°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 24 | 20.9°C | 24.0°C | |
| AUG 25 | 20.8°C | 24.0°C | |
| AUG 26 | 20.7°C | 24.0°C | |
| AUG 27 | 23.4°C | 24.0°C | |
| AUG 28 | 23.5°C | 24.0°C | |
| AUG 29 | 24.4°C | 24.0°C | |
| AUG 30 | 24.4°C | 24.0°C | |
| AUG 31 | 24.1°C | 24.0°C | |
| SEP 1 | 20.0°C | 23.9°C | |
| SEP 2 | 20.0°C | 23.7°C | |
| SEP 3 | 20.0°C | 23.5°C | |
| SEP 4 | 20.0°C | 23.3°C | |
| SEP 5 | 20.0°C | 23.1°C | |
| SEP 6 | 20.0°C | 22.9°C | |
| SEP 7 | 20.0°C | 22.7°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 | 4°C |
| February | 0°C | 3°C | 6°C |
| March | 1°C | 5°C | 8°C |
| April | 5°C | 10°C | 15°C |
| May | 9°C | 15°C | 20°C |
| June | 16°C | 19°C | 23°C |
| July | 20°C | 25°C | 30°C |
| August | 20°C | 24°C | 27°C |
| September | 18°C | 20°C | 22°C |
| October | 13°C | 17°C | 20°C |
| November | 3°C | 9°C | 15°C |
| December | 0°C | 3°C | 6°C |
Whitewater Lake: Water Temperature by Location
Whitewater Lake: Weather Forecast
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September 5
Location & Local Information
Whitewater Lake in Wisconsin experiences large seasonal swings in water temperature typical of inland midwestern lakes. In spring the surface often ranges from roughly 45–65°F (7–18°C) as the lake warms after ice‑out. By summer, surface waters commonly reach about 70–80°F (21–27°C) on warm afternoons, though shallow bays can be warmer and deeper areas remain several degrees cooler. In early fall temperatures generally fall back toward 60–70°F (16–21°C) before dropping quickly toward near‑freezing (around 32°F / 0°C) under ice in winter. Thermal stratification means subsurface temperatures can be noticeably lower than the surface during summer.
Swimming at Whitewater Lake is possible during the warmer months and is generally allowed in public access or beach areas, but it is subject to seasonal advisories and local rules. Authorities may close or warn against swimming when cyanobacterial (blue‑green algae) blooms, elevated bacterial counts, or unsafe water quality are present, and there are no lifeguards at many sites so swimmers use the lake at their own risk. For safe enjoyment, check current local advisories and choose sheltered, warmer areas of the lake when water temperatures are marginal.