Walloon Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Walloon Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Walloon Lake today is 20.5°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 3 | 23.7°C | 23.8°C | |
| AUG 4 | 23.7°C | 23.8°C | |
| AUG 5 | 23.7°C | 23.8°C | |
| AUG 6 | 23.2°C | 23.8°C | |
| AUG 7 | 21.8°C | 23.8°C | |
| AUG 8 | 20.5°C | 23.8°C | |
| AUG 9 | 20.5°C | 23.8°C | |
| AUG 10 | 20.5°C | 23.8°C | |
| AUG 11 | 23.8°C | 20.7°C | |
| AUG 12 | 23.8°C | 20.8°C | |
| AUG 13 | 23.8°C | 21.0°C | |
| AUG 14 | 23.8°C | 21.2°C | |
| AUG 15 | 23.8°C | 21.3°C | |
| AUG 16 | 23.8°C | 21.5°C | |
| AUG 17 | 23.8°C | 21.7°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 | 1°C | 4°C | 7°C |
| February | 1°C | 5°C | 8°C |
| March | 0°C | 3°C | 6°C |
| April | 3°C | 6°C | 10°C |
| May | 4°C | 14°C | 23°C |
| June | 12°C | 18°C | 22°C |
| July | 18°C | 22°C | 25°C |
| August | 20°C | 24°C | 27°C |
| September | 12°C | 17°C | 21°C |
| October | 11°C | 15°C | 18°C |
| November | 0°C | 6°C | 11°C |
| December | 0°C | 2°C | 5°C |
Walloon Lake: Water Temperature by Location
Walloon Lake: Weather Forecast
August 11
August 12
August 13
August 14
Location & Local Information
Walloon Lake in northern Michigan typically follows the seasonal pattern of inland glacial lakes. In late spring temperatures are cool, often ranging from the mid-40s to low 60s °F (about 7–17 °C). By early summer the surface usually rises into the low to mid 60s °F (15–20 °C), and peak summer months commonly see surface readings in the upper 60s to mid 70s °F (20–24 °C). Come fall the water cools back through the 50s and 40s °F (10–7 °C) before winter freeze-up, when surface ice forms and temperatures sit at or below freezing (32 °F / 0 °C). Localized conditions, depth and recent weather can shift these figures, so actual temperatures at any moment may differ from long-term averages.
Swimming is generally permitted and a regular summer activity at public access points and private beaches around the lake because it is a freshwater recreational lake that reaches comfortable temperatures during July and August. However, many people find water under about 68 °F (20 °C) brisk, so the most comfortable swimming window is usually a few weeks in midsummer. In colder seasons swimming is uncommon and unsafe due to low water temperatures and ice. Visitors should heed posted warnings, respect private property, and consider water quality advisories or local guidance before entering.